Pink Floyd
Mobile Fidelity Sound Lab
Discography
by Vernon Fitch
© copyright Vernon Fitch / The Pink Floyd Archives
by Vernon Fitch
© copyright Vernon Fitch / The Pink Floyd Archives
This is a discography of Pink Floyd releases by Mobile Fidelity Sound Lab. Mobile Fidelity Sound Lab (MFSL) was a division of Mobile Fidelity Productions, Inc. and was formed in 1977 in Sebastopol, California. MFSL mastered recordings onto vinyl, cassettes, and compact discs from original master tapes to produce the highest quality releases. They specialized in half-speed master lacquer cutting, quality plating from overseas, imported pressings from Japan, special high-definition vinyl, and static-free inner sleeves. Although the company produced some of the finest audio releases in the world, cost considerations forced the company to cease operations on November 19, 1999. Any comments, corrections or additions to this discography are appreciated.
Mobile Fidelity Sound Lab first began releasing vinyl LPs in 1978. These "Original Master Recordings" were custom pressed in Yokohama, Japan by the Victor Company of Japan (JVC) on Super Vinyl, an exclusive compound that was used to achieve maximum clarity and quietness. The results were some of the finest audio quality albums ever made. The first Pink Floyd Original Master Recording album released by MFSL was Dark Side of the Moon, issued in June of 1979. It was the 17th overall release by the company.
Production Runs: MFSL produced Original Master Recordings in very limited editions. In fact, their advertisements guaranteed not to produce more than 200,000 copies of any release. According to Gregg Schnitzer, the Director of Product Development at MFSL from 1980 through 1986, and Chief Engineer from 1984 to 1986, the total production run for Dark Side of the Moon on vinyl was only 25,000. In a recent interview, he explained the production runs, "For vinyl it was directly proportionate to the number of lacquers cut. Some titles only got as high as A1 and B1 or even A2 and B2. Others would go as high as A9 or even A11 or A12. Look on the disc. Just outside the label land where the lead out groove is at the end of the record side, you will see a scribe mark of the lacquer side and who did it. Stan Ricker would be SR/2, Jack Hunt would be JH/2, John LeMay would be JL/2 and so on.
"[Determining] the number of discs to press was guess work. Sometimes we would cut extras and have them plated but never need to make stampers from them. Others we would run out of and have to request the masters back for another go. They would carry a mark like A1-1 and would almost always sound a bit different from the original work we'd done as our gear was not total recall."
Note: Stan Ricker cut all of the MFSL lacquers for Dark Side of the Moon. Ricker had been the cutting engineer for JVC in the 1970s, and had been cutting CD-4 quad albums for JVC prior to working for MFSL.
Record Debut: In a recent interview published in Goldmine Magazine, Herbert A. Belkin, former President of Mobile Fidelity Sound Lab, recalled the debut of the MFSL Original Master Recording LP of Dark Side of the Moon. He was quoted as saying, "We presented Dark Side of the Moon at the Chicago Consumer Electronics Show in June of 1979. The response was so amazing. The commercial response was so amazing that the company literally was turned upside down, and these two fellows, neither of whom had a great deal of business experience, were swamped. I wound up spending more and more time helping them. Late in the fall, Brad Miller asked me if I would come in and take over the running of the business for an equity position and a salary. On January 1, 1980, I became the president of Mobile Fidelity."
Record Production Process: The MFSL Original Master Recording record production process began with the use of the original stereo master tape. Herbert A. Belkin, who had worked for Capitol Records and ABC Records before becoming President of Mobile Fidelity Sound Lab, originally worked for MFSL as a consultant and helped MFSL gain access to the original master tape for Dark Side of the Moon in 1978. Using the original master tape, MFSL cut a disc lacquer. This was done on a disc cutter turntable, which was driven by a quartz-lock motor that rotated the turntable at 16 2/3 rpm, one half the speed an LP plays at (33 1/3 rpm), while the master tape was played at one-half the actual recorded speed. This half-speed disc cutting process allowed the cutting stylus twice as much time to carve an accurate groove in the disc. Although half-speed cutting uses only one quarter of the power needed for normal speed cutting, two 600 watt per channel cutting head amplifiers were used, producing significantly better top end and overall frequency response. No transformers, limiting, or compression were used during the process. Immediately after the metal lacquer was cut, it was refrigerated for protection. For the plating process, the metal lacquer was sent to Japan where the metal master (negative), and the mother stamper (positive) were created by the Victor Company of Japan (JVC) for MFSL. A test pressing was then made for approval by the MFSL production department. After their approval, the vinyl records were stamped. The system used for cutting the albums was made by Ortofon, and used 17 op amps in series with the gain path.
Note: The metal master is indicated by the number following the written matrix number. For example, MFSL-1-017-A1 indicates metal master number 1. The stamped matrix number, such as 2105, indicates stamper set 2 from master number 5.
Reference System: At the time of the cutting of the first issue of Dark Side of the Moon, Mobile Fidelity Sound Lab used a reference system that consisted of:
Turntables:
Revox B-790
Denon
Turntable Arms:
SME 3009 / 2 (modified)
Grace 714
JH Formula 4
Pickups:
Promethean Phase Two
G.A.S. Sleeping Beauty - Shibata, with Verion transformer
Mark III (non-linear) with MLAS D-6 card
Ortofon MC 20 with Ortofon pre-preamp
Preamps:
Mark Levinson ML-1
Spatial Coherence
Audio Research SP-6
Speakers:
Beveridge Model 2 (includes amps)
UREI 604 E "Time Align" (mastering center)
Sub-woofer - RH Labs, driven by G.A.S. Ampzilla II
Crossover:
Crown VFX-2, used as low pass filter below 55 Hz
Master Lacquer Cutting System Components:
Neuman VMS 70 lathe, with quartz-lock motor drive by JVC
Neuman SAL 74 amplifier system, modified - no input transformers
Neuman SX 74 cutting head
Transformerless console custom built by JVC
All playback decks, heads, and electronics were modified to accommodate half-speed eq curve, and maximum separation, imaging, and frequency response.
Sample Records: Prior to the release of Dark Side of the Moon, MFSL produced a sample pressing of the record for use by their sales representatives for demonstration purposes, and to help them sell the release. The first album listed in this discography is the test pressing, followed by the sample pressing, and then the first MFSL release of Dark Side of the Moon.
Super Vinyl: Super Vinyl was used to press the finished records. This Super Vinyl was only available in Japan from JVC where it was originally developed for CD-4 discs, and had anti-static properties, longer wear, quieter surfaces, and rigid groove walls. It also has no "memory" allowing repeated plays of a record without having to rest it in between plays.
Vinyl Weight: Early MFSL Original Master Recording vinyl albums were pressed on high quality vinyl with a standard mass of approximately 100 grams (the Dark Side of the Moon LPs have been weighed at between 100 grams and 122 grams). It wasn't until the later pressings of the UHQR series that 200 gram vinyl was used.
Title: Dark Side of the Moon (MFSL test pressing)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-017
Matrix Information: (side 1 / side 2)
1) MFSL 1-017 A 2-1 211+ SR/2 / MFSL 1-017 B 2-1 211+ SR/2 (both written, except 211+ / 211+ stamped) [sticker says A2-1 / B2-1]
2) MFSL-1-017-A 2-2 221+ SR/2 / MFSL-1-017-B2-2 221+ SR/2 (both written, except 221+ / 221+ stamped) [sticker says A-2 / B-2]
3) MFSL-1-017-A 2-5 252+ SR/2 / MFSL-1-017-B2-5 251+ SR/2 (both written, except 252+ / 251+ stamped) [sticker says A2-5 / B2-5]
4) MFSL-1-017-A1 262+ SR/2 / MFSL-1-017-B1 262+ SR/2 (the 1 is crossed out and a 2 is written) (both written, except 262+ / 262+ stamped) [sticker says A2-6 / B2-6]
5) MFSL-1-017-A2 2102 SR/2 / MFSL-1-017-B2 2102 SR/2 (both written, except 2102 / 2102 stamped) [sticker says A2-10 / B2-10]
6) MFSL-1-017-A5 2105 SR/2 / MFSL-1-017-B5 2105 SR/2 (both written, except 2105 / 2105 stamped) [sticker says A2-10-5 / B2-10-5]
Lacquer Cutter: Stan Ricker (SR/2)
Production Date: 1978
Release Information: A JVC test pressing for the MFSL Original Master Recording release of Dark Side of the Moon.
Description:
Cover: Blank white cover with a printed sticker in the upper right corner that says:
SAMPLE RECORD
NOT FOR SALE
Record No.
MFSL 1-017 A-2 B-2
Cover Numbers: The following are a list of cover numbers that have been found:
1) A-2 / B-2
2) A-5 / B-5
3) A2-6 / B2-6
4) A2-6 / B2-9
5) A2-7 / B2-7
6) A2-10 / B2-10
7) A2-10-5 / B2-10-5
8) A2-10-10 / B2-10-10
9) A2-11 / B2 9
Labels: White JVC label with orange printing (this test pressing label was used on approximately the first 20 or so MFSL album test pressings [MFSL-1-001 through MFSL-1-020] before it was changed to an MFSL, Inc. test pressing label).
"Pink Floyd Dark Side of the Moon" handwritten on the label in black ink.
Printed in orange on the label is:
Title: Dark Side of the Moon (MFSL sample record)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-017
Matrix Information: (side 1 / side 2)
1) MFSL-1-017-A 2-1 (213+ E stamped) / MFSL-1-017-B2-1 (211++ stamped) (both written) [112g]
2) MFSL-1-017-A 2-1 (213+ F stamped) / MFSL-1-017-B2-1 (211++ stamped) (both written)
Lacquer Cutter: Stan Ricker (SR/2)
Release Date: early 1979
Release Information: MFSL sample record. This record was provided to MFSL representatives to help them presell the Dark Side of the Moon MFSL LP before it was actually shipped.
Description:
Cover: Blank white cover.
Labels: White MFSL sample record label. This is the same as the regular released label, with the word " sample" printed on the label in a rectangular box.
Title: Dark Side of the Moon (MFSL - 1st issue)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-017
Matrix Information: (side 1 / side 2)
1) MFSL-1-017-A 2-1 (211+ E stamped) / MFSL-1-017 B 2-1 (211+ stamped) (both written)
2) MFSL-1-017-A 2-1 (211+ E stamped) / MFSL-1-017-B 2-2 (221+ stamped) (both written)
3) MFSL-1-017-A 2-1 (211+ F stamped) / MFSL-1-017-B 2-1 (212 stamped) (both written)
4) MFSL-1-017-A 2-1 (211+ F stamped) / MFSL-1-017-B 2-2 (215+ stamped) (both written)
5) MFSL-1-017-A 2-1 (212+ F stamped) / MFSL-1-017 B 2-2 (221+ stamped) (both written)
6) MFSL-1-017-A 2-1 (212+ F stamped) / MFSL-1-017 B 2-5 (251+ stamped) (both written)
7) MFSL-1-017-A 2-1 (215+ stamped) / MFSL-1-017 B 2-5 (251+ stamped) (both written)
8) MFSL-1-017-A 2-2 (221+ stamped) / MFSL-1-017-B2-1 (215+ stamped) (both written)
9) MFSL-1-017-A 2-4 (241+ stamped) / MFSL-1-017-B2-5 (251+ stamped) (both written)
10) MFSL-1-017-A 2-5 (252 stamped) / MFSL-1-017-B2-1 (211 stamped) (both written)
11) MFSL-1-017-A2-5 (252 F stamped) / MFSL-1-017-B2-4 (24 stamped) (both written)
Lacquer Cutter: Stan Ricker (SR/2)
Original Price: $15
Release Date: June 1979
Release Information: Original issue. Half-speed Original Master Recording on high quality vinyl.
Vinyl Weight: Two weighed at 100 and 108 grams.
Description:
Front Cover: Black with prism, and ORIGINAL MASTER RECORDING in a yellow strip across the top. Matte. The "ORIGINAL MASTER RECORDING" lettering across the top of the cover is in straight block letters.
Back Cover: Black with an inverted prism, and ORIGINAL MASTER RECORDING in a yellow strip across the top. The "ORIGINAL MASTER RECORDING" lettering across the top of the cover is in straight block letters. At the bottom is the MFSL logo, the Harvest logo, and "MANUFACTURED & DISTRIBUTED BY MOBILE FIDELITY SOUND LAB UNDER LICENSE FROM CAPITOL RECORDS, INC. P 1973 THE GRAMOPHONE COMPANY, LIMITED."
Inside Cover: Black with heartbeat line, lyrics, and credits. To the right of the credits, it says:
Super High Definition Vinyl (extended life)
Imported Pressing
Static Free Inner-Sleeve
Source: the original stereo master tape
Spine: MFSL 1-017 PINK FLOYD-THE DARK SIDE OF THE MOON MOBILE FIDELITY SOUND LAB PRINTED IN U.S.A.
Inner Sleeve: The record is housed in a special static-free inner sleeve.
Inserts:
1) A white, cardboard, 4-page, wrap-around inner sleeve cover with "SUPERDISCS, SUPERTAPES, SUPERSTARS, SUPERQUALITY" on the front, and "An Audiophile's Dream Come True" on the back. The inside is blank.
2) An 8 inch by 5 inch yellow certificate of Limited Warranty from Mobile Fidelity Sound Lab, with a form on back for return of a defective record.
3) An 8 1/2 inch by 11 inch advertisement for MSFL that with a
picture of a record coming out of a sleeve.
Plastic Cover: Released sealed in a clear-plastic cover.
Cover Stickers:
1) Early copies had a cover sticker with the text "SUPER HIGH FIDELITY LIMITED EDITION PRESSING ENCLOSED! 1978 MFSL."
2) Later copies were issued with two cover stickers. One was a square white sticker that said "HALF-SPEED MASTERED SUPER HIGH FIDELITY LIMITED EDITION." The second sticker was red and said "A BRAND NEW EXPERIENCE!"
Labels: White MFSL label with black text. At the top in brown text it says " ORIGINAL MASTER RECORDING TM MOBILE FIDELITY SOUND LAB." At the bottom, it says "Mfd. & dist. by Mobile Fidelity Sound Lab under license from Capitol Records, Inc. P 1973 The Gramophone Company Ltd." PRESSED IN JAPAN.
In late 1980, Mobile Fidelity Sound Lab began producing limited edition Original Master Recording High Fidelity Cassettes. These high quality cassettes were made using a one-to-one real time cassette transfer from the original master tapes. The eighth such Original Master Recording High Fidelity Cassette produced by MFSL was Dark Side of the Moon, released during the first part of 1981.
Cassette Production: MFSL Original Master Recording High Fidelity Cassettes were produced using a one-to-one real time cassette transfer from the original master tapes. No equalization was used during the duplication process. The original cassette master was then transferred, using state of the art equipment, onto high bias BASF Chromium Dioxide tapes for maximum frequency response and minimal background noise. According to Gregg Schnitzer of MFSL, "It was very close in master prep to what the vinyl sounded like with one significant difference. Want some cool trivia? Back in the early 1980s, digital was a bit unpredictable and flaky which is why we used a very expensive 1" video deck (BVH 1000) instead of a U-Matic type 3/4". I'd get these random ticks and pops which we affectionately called zits.
"One night I sat in the studio listening to the Dark Side of the Moon digital copy and was horrified when I heard lots of low level clicks and zit like sounds. So I called my wife to tell her I'd be working until sunup as the approval copy had to go to Alan Parsons via counter-to-counter air as soon as possible. I turned the lights off so I wouldn't be distracted and sat there all night long with the first DAE-1100 editor and made a few hundred one-millisecond edits to get rid of those zits I was hearing. Then I made an approval copy cassette for Alan, sent it on its way, and went home to sleep for a day or two.
"A couple of days later we got a heated call from Mr. Parsons wanting to know, "What the fuck did you do to the master?" I explained that I had done the best mastering job I could and that it compared very favorably to the vinyl and, in fact, I thought it sounded better than the vinyl. Was there some problem? He said that when he had mixed Dark Side of the Moon, the desk drove him nuts because every time he muted or unmuted a track, or switched an EQ in or out, there would be a resulting click or pop. There was no technology to remove these artifacts, so he and the band decided to just live with it. He said, "How the hell did you get rid of those pops. I love it!" He was left with a patient explanation that it was proprietary. Man, I almost soiled my pants only to find out that he was very impressed."
Cassette Shells: High quality cassette shells were used to eliminate tape jamming, head wear, wow & flutter, and to achieve accurate tracking. The first releases of MFSL cassettes used BASF shells with their proprietary arm mechanisms. These tapes can be distinguished by their black shell casings, and royal blue MFSL labels. Later, MFSL began using their own specially designed polycarbonate cassette shells, which had black MFSL labels.
Cassette Tape: Researcher Mark Colen used an electron microscope at 10,000x to 50,000x magnification, and thermal spectral analysis gear, to analyze samples of all the major cassette tape brands. The analysis revealed that only BASF tape had uniformly sized crystals aligned in an almost woven pattern, and BASF PRO II Chromium Dioxide tape was chosen for use in MFSL Original Master Recording High Fidelity Cassettes. Test copies were made prior to production.
Box: When Original Master Recording High Fidelity Cassettes were first released, they were issued sealed in a gray box, with a cardboard insert at the back, so that it could be hung on a rack. The front of the box had a square cut out at the top so that the prism on the cover of the cassette tape could be seen through the box. At the top of the insert, above the box, was "ORIGINAL MASTER RECORDING," "HIGH FIDELITY CASSETTE," and the title of the tape on a blue background. At the bottom of the front of the box was the Mobile Fidelity Sound Lab logo. On the back of the cardboard insert was information about the tape, including the album title, song titles, album credits, and information about Mobile Fidelity cassettes in a box underneath. At the bottom was the Mobile Fidelity logo. Inside each box was an insert that explained in detail how Mobile Fidelity OMR cassettes were made, and a postcard to be returned to Mobile Fidelity that contained a survey about what the listener thought of the High Fidelity cassette tape.
Production Run: All Original Master Recording High Fidelity Cassettes were produced in limited numbers. Production runs of 100 tapes at a time were done from a digital master whenever stocks would run low. As this cassette was only made for a couple of years with the original shell, only a few hundred copies of this release were produced.
Reference System: At the time of the development of the first issue of the Dark Side of the Moon Original Master Recording High Fidelity Cassette, Mobile Fidelity Sound Lab used a reference system that consisted of a JVC KD A77 cassette recording deck with a 15V power supply. This deck could handle the wider bandwidth LF353 op amps that were being used, and could punch the bias when needed.
Title: Dark Side of The Moon (MFSL Original Master Recording)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL C-017
Release Date: 1981
Release Information: Original Master Recording High Fidelity Cassette. Recorded on BASF PRO II Chromium Dioxide tape.
Description:
Case: [front] [back] When Original Master Recording High Fidelity Cassettes were first released, they were issued in a gray longbox style case, with a blue cardboard information insert at the back, so that it could be hung on a rack. The front of the box had a square cut out at the top so that the prism on the cover of the cassette tape could be seen through the box. At the top of the insert, above the box, was the top part of the blue information card, which said: "ORIGINAL MASTER RECORDING," "HIGH FIDELITY CASSETTE," and the title of the tape on a blue background. At the bottom of the front of the box was the Mobile Fidelity Sound Lab logo. On the back of the cardboard insert was information about the tape, including the album title, song titles, album credits, and information about Mobile Fidelity cassettes in a box underneath. At the bottom was the Mobile Fidelity logo.
Tape Cover: Blue cover with picture of Dark Side of the Moon Original Master Recording LP in the center.
Tape Cover Insert: Blue insert cover with picture of Dark Side of the Moon Original Master Recording LP in the center. Fold out says Mobile Fidelity Sound Lab, a division of MFSL, Inc. The back side is blank.
Tape: Black cassette with maroon labels.
Shell: Black shell.
Insert: [front] [back] Inside each box was a 8 page fold-open insert that explained in detail how Mobile Fidelity OMR cassettes were made.
Reply Card: [outside] [inside] Also included was a reply card that contained a survey about what the listener thought of the High Fidelity cassette tape.
Songs:
Side 1: Speak To Me, Breathe, On The Run, Time, The Great Gig In The Sky.
Side 2: Money, Us And Them, Any Colour You Like, Brain Damage, Eclipse.
In 1981, Mobile Fidelity Sound Lab also produced eight UHQR (Ultra High Quality Record) albums. The second album produced as an UHQR by MFSL was the Pink Floyd album, Dark Side of the Moon.
Album Box: The record album is housed in a 3/4 inch thick black cardboard box. On the inside of the cover of the box is a pouch that holds the Technical Specification Manual, and the UHQR Certificate of Authenticity. The record itself is housed in a separate inner album cover, sandwiched in between two 1/4 inch foam protectors. The inner album cover is black with "Original Master Recording." in a red strip at the top, and "UHQR By Mobile Fidelity Sound Lab" in the lower right corner. Inside the inner album cover, the record is in a static free inner sleeve.
Production Run: All MFSL UHQR albums were made in limited quantities of 5,000 numbered copies each.
Super Vinyl: MFSL UHQR records were made with Super Vinyl. Super Vinyl was produced using a highly-polymerized synthetic resin with high vinyl acetate content derived from a vinylchloride-vinylacetate coploymer. Its characteristics include superior elasticity, extreme durability, and an excellent signal-to-noise ratio. Its frequency response is so accurate that the specification of plus or minus 0.5dB is maintained over a frequency range of 20Hz to 20kHz.
Technical Specifications:
Distortion: Distortion was so low on MFSL UHQR records that nearly theoretical values were achieved. Low, mid, and high range distortions were improved by 12, 10 and 6 dB or more, respectively.
Frequency Response: Frequency response on MFSL UHQR records is flat. Its accuracy is within plus or minus 0.5 dB, whereas conventional records have a frequency response of plus or minus 3 dB.
Record Quality: Production of UHQR records by MFSL produced minimal individual disc quality variations.
Surface Vibration: Mid-range disc surface vibration at 700 Hz was reduced by 10 dB.
Wear Resistance: Because MFSL UHQR records are flat, thick, and free from physical shape distortion, there is relatively little wear resistance.
UHQR Characteristics: The sound quality of UHQR records is excellent. They have solid bass, more substantive imaging, a better three-dimensional field, and greater definition of inner detail than any other record. UHQR albums are perfectly flat, eliminating tracking errors, mechanical pickup vibration, and disc surface vibration due to reproduced sound pressure from the speakers. They are also thicker than conventional records, significantly reducing disc surface vibration. These records are made with Super Vinyl, producing high forming accuracy and excellent wear resistance. Each UHQR record was pressed with an ultra precision mold on a totally unique, high precision press, developed by JVC as a result of its research with the original CD-4 disc and VHD / ADH video-disc production process. Pressing irregularities, such as "orange peel," were eliminated, resulting in reduced low frequency range distortion.
Vinyl Weight: MFSL UHQR albums were pressed on 200 gram Super Vinyl.
Title: Dark Side of the Moon (MFSL UHQR box)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFQR 1-017
Matrix Information: (side 1 / side 2)
1) MFSL-1-017-A 2-1 UH217+++ / MFSL-1-017-B2-2 UH222++ (both written, except UH217+++ / UH222++ stamped) [L1]
2) MFSL-1-017-A 2-2 UH223+++ / MFSL-1-017-B2-2 UH222++ (both written, except UH223+++ / UH222++ stamped) [L2]
Lacquer Cutter: Stan Ricker (SR/2)
Original Price: $45
Release Date: 1981
Release Information: UHQR release by Mobile Fidelity Sound Lab. Original Master Recording on 200 gram Super Vinyl issued in a foam padded black box. Limited edition numbered copy of 5,000.
Sample Copies: UHQR sample copies were made with a white cover and the words "Pink Floyd “Dark Side of the Moon” UHQR" written in blue pen in the top right corner of the sleeve. These copies had JVC UHQR sample labels, the matrix MFSL–1–017–A 2 -1 216 + SR / 2 / MFSL–1–017–B 2 -1 214 + + + SR / 2, and were pressed on 200 gram pure vinyl. Accompanying the album was a ten page UHQR by JVC Technical Development Report [front] [1] [2] [3] [4] [5] [6] [7] [8] [9] [10] [back].
Description:
Box Front: Black box. At the top is a silver strip with "ORIGINAL MASTER RECORDING" written in black. In the lower right corner it says in red text:
UHQR
BY MOBILE
FIDELITY
SOUND
LAB
Box Back: Black with a silver strip at the top. At the bottom, in red, is the MFSL logo, and the Harvest logo.
Inside the box is a second cover that houses the record.
Cover Front: Inside the box is a separate cover for the LP. The front is black with a red strip across the top with "ORIGINAL MASTER RECORDING" written in black. In the lower right corner it says in white text:
UHQR
BY MOBILE
FIDELITY
SOUND
LAB
Cover Back: Black with a red strip across the top with "ORIGINAL MASTER RECORDING" written in black. On the left side of the cover is a picture of the Pink Floyd Dark Side of the Moon Original Master Recording LP in black and white, inside a red box. Under the picture it says " MFQR 1-017 - Limited Edition Number 238" The number is hand-written in white. On the right side of the cover are the song listings, credits, the Harvest logo, the MFSL logo, and "PRINTED IN U.S.A. All Rights Reserved." The bottom part of the credits read " Half-speed production and mastering by Original Masteringworks TM. Specially plated and pressed on high definition super vinyl by Victor Company of Japan, Ltd. Special static free-dust free inner sleeve. Special heavy duty protective packaging. Source: The original stereo master tape. Mastered with the Ortofon Cutting System. Manufactured and distributed by MFSL, Inc., Chatsworth, CA 91311, under license from Capitol Records, Inc."
Inner Sleeve: Special static-free, dust-free inner sleeve, with a white cardboard wrap-around to protect the album.
Inserts:
1) Certificate of Authenticity: An 8 1/2 inch by 5 1/2 inch gray UHQR certificate of authenticity with the edition number, signed by the President of Mobile Fidelity Sound Lab, Herbert A. Belkin, in blue ink.
2) Technical Specifications Manual: [front] [2] [back] [inside] A 6-page, fold-open Technical Specifications Manual.
3) Registration card.
Packing List: When ordered, the LP was received with a packing list.
Labels #1: Grey MFSL label with black text. Title in small font. Found on very early pressings (#238, #406, #443).
Labels #2: Grey MFSL label with black text. Title in a large font. Found on later pressings (#878, #1829, #1931, #2624, #3573, #3710).
At the top it says:
In 1981, Mobile Fidelity Sound Lab also began producing a second issue of the Pink Floyd Original Master Recording vinyl LP, Dark Side of the Moon. These reissues can be distinguished by the Original Master Recording lettering at the top of the front cover being slanted to the right. They also included different inserts.
Title: Dark Side of the Moon (MFSL - 2nd issue)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-017
Matrix Information: (side 1 / side 2)
1) MFSL-1-017-A 2-1 (H213 +++ stamped) / MFSL-1-017-B2-1 (H215 +++ stamped) (both written)
2) MFSL-1-017-A 2-1 (H213 +++ J stamped) / MFSL-1-017-B3 (H287 + stamped) (both written)
3) MFSL-1-017-A 2-1 (H215 +++ + A stamped) / MFSL-1-017 B3 (H287 + stamped) (both written)
4) MFSL-1-017-A 2-1 (H216 + stamped) / MFSL-1-017-B 2-5 (251 + stamped) (both written)
5) MFSL-1-017-A 2-1 (H272 +++ stamped) / MFSL-1-017-B2-1 (H212 +++ stamped) (both written)
Lacquer Cutter: Stan Ricker (SR/2)
Release Date: 1981
Release Information: Second issue. Half-speed Original Master Recording on Super Vinyl.
Vinyl Weight: Four different copies weighed at 113, 114, 116, and 122 grams.
Description:
Front Cover: Black with prism, and ORIGINAL MASTER RECORDING in a yellow strip across the top. Matte. The "ORIGINAL MASTER RECORDING" lettering across the top of the cover is in italicized letters leaning right.
Back Cover: Black with an inverted prism, and ORIGINAL MASTER RECORDING in a yellow strip across the top. The "ORIGINAL MASTER RECORDING" lettering across the top of the cover is in italicized letters leaning right. At the bottom is the MFSL logo, the Harvest logo, and "MANUFACTURED & DISTRIBUTED BY MOBILE FIDELITY SOUND LAB UNDER LICENSE FROM CAPITOL RECORDS, INC. P 1973 THE GRAMOPHONE COMPANY, LIMITED."
Inside Cover: Black with heartbeat line, lyrics, and credits. Typo in the line "I'm all right Jack keep your hands of my stack." To the right of the credits, it says:
Half-Speed Mastering by Stan Ricker
Imported Pressing and Plating
Super High Definition Vinyl (extended life)
Special Static Free-Dust Free Inner-Sleeve
Special Heavy Duty Protective Packaging
Source: the Original Stereo Master Tape
Spine: MFSL 1-017 PINK FLOYD-THE DARK SIDE OF THE MOON MOBILE FIDELITY SOUND LAB PRINTED IN U.S.A.
Inner Sleeve: The record is housed in a special static-free inner sleeve.
Inserts:
1) Inside Sleeve: [front] [inside] [back] A 4-page fold-open, heavy cardboard record cover with "LIMITED EDITIONS FROM THE ORIGINAL MASTERS" on the front, an MFSL catalog in the center, and the story of MFSL on the back.
2) Warranty Certificate: [front] [back] An 8 inch by 5 inch yellow certificate of Limited Warranty from Mobile Fidelity Sound Lab, with a form on back for return of a defective record.
3) Geo-Disc Ad: [front] [back] An 11 inch by 8 1/2 inch two-sided Geo-Disc ad with order form on back.
Inner Sleeve: The record is housed in a special static-free inner sleeve.
Labels: White MFSL label with black text.
"Mfd. & dist. by Mobile Fidelity Sound Lab under license from Capitol Records, Inc. P 1973 The Gramophone Company Ltd."
At the top in brown text it says:
Dark Side of the Moon LP production note: In a recent interview, Gregg Schnitzer of MFSL revealed, "Did you know that the Dark Side of the Moon master was ruined? Somebody put it on a recorder instead of a playback-only mastering deck, and a little piece of Supertramp got dubbed onto the outro of Breathe. Big secret, that. Stan had left the company so a redo wasn't gonna happen. Makes me seriously wonder where MFSL got the source for the Dark Side of the Moon CD. Hmmm. It would have had to have been a second generation safety or the digital master I made for the cassette run."
In 1983, Mobile Fidelity Sound Lab experimented with producing Digital Audio Tapes. The second Digital Audio Tape offered by MFSL was Dark Side of the Moon.
Playback: These Digital Audio Tapes were designed to be played in PCM (Pulse Code Modulation) tape decks. Although the tapes were housed in either VHS or beta videotape cases, they could only be played through these self-contained PCM record / playback DAC decks, or using a special processor that could be hooked to a Betamax or VCR.
Production Run: These tapes were made by hand only when an order was received for them. Less than a 100 of each were produced.
Title: Dark Side of The Moon
Record Company: Mobile Fidelity Sound Lab
Catalog Number: Beta 017
Release Date: 1983
Release Information: Digital Audio Tape. Very limited edition. Less than 100 made. Cases designed by Peter Senoff.
Description:
Cover: Silver tape case with the words "Original Master Recording" at the top, and "Digital Audio Cassette" in the middle in red. The tape itself has a silver label and silver spine label.
Title: Dark Side of The Moon
Record Company: Mobile Fidelity Sound Lab
Catalog Number: VHS 017
Release Date: 1983
Release Information: Digital Audio Tape. Very limited edition. Less than 100 made. Cases designed by Peter Senoff.
Description:
Cover: Silver tape case with the words "Original Master Recording" at the top, and "Digital Audio Cassette" in the middle in red. The tape itself has a silver label and silver spine label.
In 1983, Mobile Fidelity Sound Lab also released an Original Master Recording High Fidelity Cassette reissue of the Pink Floyd album, Dark Side of the Moon.
Cassette Production: MFSL Original Master Recording High Fidelity Cassettes were produced using a one-to-one real time cassette transfer from the original master tapes. No equalization was used during the duplication process. The original cassette master was then transferred, using state of the art equipment, onto high bias BASF Chromium Dioxide tapes for maximum frequency response and minimal background noise.
Cassette Shells: By the time of this release, MFSL had stopped using BASF shells with their proprietary arm mechanisms, and started using specially designed polycarbonate cassette shells custom built by Greg Pynt and assembled in Australia, with black MFSL labels. A metallurgist in Ohio fabricated mu metal, copper, and mu metal sandwiches for the hum shield. Also specially fabricated were low friction rollers, special silicone slip sheets, idler wheels without path flash, and brass screws with no flux retention characteristics.
Cassette Tape: BASF PRO II Chromium Dioxide tape was used in all MFSL Original Master Recording High Fidelity Cassettes.
Listening Test: In the late 1980s, a blind listening test was conducted at the University of Miami. An MFSL record, cassette, and CD of the same album were played to a group of listeners, and the Original Master Recording High Fidelity Cassette was consistently picked as the best sounding copy.
Production Run: All Original Master Recording High Fidelity Cassettes were produced in limited numbers. Production runs of 100 tapes at a time were done from a digital master whenever stocks would run low. Only a few thousand copies were made of this title.
Title: The Dark Side of The Moon (MFSL - 2nd issue)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL C-017
Release Date: 1983
Release Information: Second issue. Original Master Recording High Fidelity Cassette. Recorded on BASF Chromium Dioxide Tape.
Description:
Case: Clear plastic case.
Front Cover: Black with slanted white lines and the LP cover at the top with "ORIGINAL MASTER RECORDING" in yellow across the top. Also printed on the front is "HIGH FIDELITY CASSETTE" in silver.
Cover Insert: The J-card opens up into two panes:
1) The top pane is silver.
2) In the second pane is the front cover.
On the back of the J-card is information about the cassette:
1) At the top on a white background it says "ORIGINAL MASTER RECORDING. HIGH FIDELITY CASSETTE. Mobile Fidelity Sound Lab's limited edition series of Original Master Recording High Fidelity Cassettes represents the ultimate in pre-recorded sonic reproduction. To achieve this standard:
Each cassette is transferred directly from the recording artist's original master tape (not a second or third generation copy).
Each cassette is duplicated in "real time" (1:1), not high speed duplicated. This guarantees total accuracy during the sonic transference process from the master tape.
Only the highest quality, purest chromium dioxide tape stock is utilized, guaranteeing maximum frequency response and negligible background noise.
Additionally, Dolby System TM noise reduction is utilized throughout the duplication process.
Mobile Fidelity Sound Lab created a new, state-of-the-art shell mechanism that dramatically optimizes cassette playback performance. It features a single sided, silicon slipsheet with carbon-sputtered static discharge stripes; a copper/mu-metal sandwich hum shield for maximum nullification of residual magnetic flux; and an innovative polycarbonate shell with exceptional rebound memory.
Mobile Fidelity Sound Lab exclusively presents the most sonically spectacular recorded performances by superstars of the pop, jazz, rock and classical musical worlds. These artists include Crosby, Stills, Nash and Young; Christopher Cross; The Beatles; The London Philharmonic Orchestra (Solti); Kenny Rogers; The rolling Stones; Pink Floyd; The Chicago Symphony (Reiner); Frank Sinatra; George Benson; Hall & Oates; The Alan Parsons Project; and many, many more. Please check with your local audio or record store and consult the latest Mobile Fidelity Sound Lab catalog. For a free copy, write: Mobile Fidelity Sound Lab, P.O. Box 919, Chatsworth, CA 91311.
CERTIFICATE OF LIMITED WARRANTY.
MFSL, Inc. warrants this product to be free from manufacturing defects in material or workmanship for a period of One Hundred Twenty (120) days from the date of purchase. The responsibility of MFSL, Inc. and this Warranty are subject to the following terms, conditions and limitations, except where prohibited by law.
This Warranty is void if: The product is abused or mishandled (in MFSL Inc.'s sole judgment and discretion), including but not limited to: physical abuse, liquid spills, damage done by cassette machine, damage due to improper storage (i.e.: excessive heat, exposure to random magnetic fields). Replacement cannot be made under these or similar circumstances.
As we strive toward "the perfect recording," occasional defects may occur during manufacture. Replacement is the customer's sole remedy. If there is a defect in material or workmanship within said One Hundred Twenty (120) days, kindly complete this form and return it and the product directly to us . Please do not return the product to your local dealer. Thank you.
MFSL, Inc. P.O. Box 919, Chatsworth, CA 91311.
Label: Black and silver cassette label with the title, song listing, catalog number, Mobile Fidelity Sound Labs logo, ORIGINAL MASTER RECORDING HIGH FIDELITY CASSETTE, and the Dolby logo.
Songs:
Side 1: Speak To Me, Breathe, On The Run, Time, The Great Gig In The Sky.
Side 2: Money, Us And Them, Any Colour You Like, Brain Damage, Eclipse.
Title: Atom Heart Mother (MFSL test pressing)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-088
Matrix Information: (side 1 / side 2)
1) MFSL-1-088 A-3 / MFSL-1-088 B-3 (both written)
Lacquer Cutter: Stan Ricker (SR/2)
Production Date: 1983
Release Information: A JVC test pressing for an MFSL release of Atom Heart Mother. This album was never released by MFSL at this time. The catalog number used for this test pressing is the catalog number that was eventually given to the MFSL release of the Crosby Stills Nash and Young album, Deja Vu.
Description:
Cover: Blank white cover with a printed sticker in the upper right corner that says:
SAMPLE RECORD
NOT FOR SALE
Record No.
MFSL 1-088, A-3, B-3
Label: White MFSL test pressing label. Printed on the label is:
In 1984, Mobile Fidelity Sound Lab released an Original Master Recording on vinyl of the Pink Floyd album, Meddle.
Production Information: This Original Master Recording was made using the half-speed production process, with mastering by Original Masteringworks. The pressing was sourced from the original stereo master tape. The disc was specially plated and pressed on high definition Super Vinyl by the Victor Company of Japan, Ltd. The album cover was made of special, heavy duty protective packaging, and the record was housed in a special, static-free, dust-free inner sleeve. Manufactured and distributed by MFSL, under license from Harvest Records, Inc.
Title: Meddle (MFSL issue)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-190
Matrix Information: (side 1 / side 2)
1) V MFSL-1190 A H121+ / MFSL-1190 B H121++ (both stamped)
Release Date: 1984
Release Information: Half-speed Original Master Recording on high quality vinyl. Limited Edition
Test Pressing: Test pressings were made with a white MFSL test pressing label, matrix numbers MFSL-1190 H111.
Vinyl Weight: 118 grams
Description: Gatefold cover.
Front Cover: Sound waves on an ear. Across the top, in a light blue band, it says "Original Master Recording."
Back Cover: In the upper left are the song titles. In the upper right corner is stamped in black "Limited Edition," and the number of the issue underneath (editions found as high as 4515). In the lower left corner is the MFSL logo. In the lower right corner is the Harvest logo. Across the bottom it says "Half-Speed Production and Mastering by Original MasteringworksTM. Specially Plated and Pressed on High Definition Super Vinyl by Victor Company of Japan, Ltd. Special Static Free-Dust Free Inner Sleeve. Special Heavy Duty Protective Packaging. Source: The Original Stereo Master Tape. Manufactured and distributed by MFSL, Inc., 1260 Holm Road, Petaluma, CA
94952, under license from Harvest Records, Inc. © P 1971. The
Gramophone Co., Ltd., a division of EMI Records, U.K., Ltd. All
rights reserved."
Inner Cover: Black and white band member pictures.
Inner Sleeve: Cardboard 4-page wrap-around inner sleeve cover with technical details and catalog listings. Record is housed in a special static-free, dust-free inner sleeve.
Plastic Cover: Released sealed in a medium weight plastic cover. The plastic cover had a small hole in the center for ventilation, and was perforated along the bottom edge to tear off to open.
Label: White MFSL label with black text. At the top it says in brown text "ORIGINAL MASTER RECORDING TM MOBILE FIDELITY SOUND LAB a division of MFSL. INC." At the bottom it says "Pressed In Japan."
Vinyl Album Pressing Note: In 1988, the JVC pressing plant in Yokohama, Japan, that Mobile Fidelity Sound Lab had used to press it's vinyl albums closed down. At the time, MFSL announced that it would no longer make vinyl albums. However, in the early 1990s MFSL opened a new pressing plant near Sebastopol, California, and MFSL began releasing vinyl albums once again in 1994 with their ANADISQ 200 LP series. The MFSL Original Master Recording LP of Meddle was the last Pink Floyd album produced at the JVC pressing plant in Japan.
In 1984, Mobile Fidelity Sound Lab also released an Original Master Recording High Fidelity Cassette of the Pink Floyd album, Meddle.
Cassette Shells: For this Original Master Recording High Fidelity Cassette, MFSL used a specially designed polycarbonate cassette shell that was assembled in Australia, with black and silver MFSL labels. These high quality cassette shells were used to eliminate tape jamming, head wear, wow & flutter, and to achieve accurate tracking.
Cassette Tape: Original Master Recording High Fidelity Cassettes used high-quality BASF PRO II Chromium Dioxide tape.
Production Run: Original Master Recording High Fidelity Cassettes were produced in limited numbers. Production runs of 100 tapes at a time were done from a digital master whenever stocks would run low. Only a few thousand copies were made of this title.
Title: Meddle (MFSL)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL C-190
Release Date: 1984
Release Information: Original Master Recording by Mobile Fidelity Sound Lab.
Description:
Case: Clear plastic case.
Front Cover: Black with slanted white lines and the LP cover at the top with "ORIGINAL MASTER RECORDING" in orange across the top. Also printed on the front is "HIGH FIDELITY CASSETTE."
Cover Insert: The J-card opens up into three panes:
1) In the top front pane on a white background is the title, song listing, production credits, and "Manufactured and distributed by MFSL, Inc. under license from Harvest Records, Inc. P © 1971 The Gramophone Co., Ltd. a division of EMI Records, U.K., Ltd. All rights reserved. Unauthorized duplication is a violation of applicable laws."
2) In the second front pane on a white background it says "ORIGINAL MASTER RECORDING. HIGH FIDELITY CASSETTE. Mobile Fidelity Sound Lab's limited edition series of Original Master Recording High Fidelity Cassettes represents the ultimate in pre-recorded sonic reproduction. To achieve this standard:
Each cassette is transferred directly from the recording artist's original master tape (not a second or third generation copy).
Each cassette is duplicated in "real time" (1:1), not high speed duplicated. This guarantees total accuracy during the sonic transference process from the master tape.
Only the highest quality, purest chromium dioxide tape stock is utilized, guaranteeing maximum frequency response and negligible background noise.
Additionally, Dolby System TM noise reduction is utilized throughout the duplication process.
Mobile Fidelity Sound Lab created a new, state-of-the-art shell mechanism that dramatically optimizes cassette playback performance.
Mobile Fidelity Sound Lab exclusively presents the most sonically spectacular recorded performances by superstars of the pop, jazz, rock and classical musical worlds. These artists include The Beatles, The Beach Boys, Frank Sinatra, Miles Davis, The Cleveland Orchestra and more. For a complete, free Original Master Recordings catalog call toll free: 800-423-5759, or write to: Mobile Fidelity Sound Lab, 1260 Holm Road, Petaluma, CA 94952-1182.
3) In the third front pane is the front cover.
On the back of the J-card are four black and white pictures of the band members.
Label: Black and silver cassette label with the title, song listing, catalog number, Mobile Fidelity Sound Labs logo, ORIGINAL MASTER RECORDING HIGH FIDELITY CASSETTE, and the Dolby logo.
Songs:
Side 1: One of These Days, A Pillow of Winds, Fearless, San Tropez, Seamus.
Side 2: Echoes.
In 1988, the first Pink Floyd CD was released by Mobile Fidelity Sound Lab. It was, of course, Dark Side of the Moon. It was released on a 24 karat gold plated UltraDisc CD.
Manufacturing Location: From 1988 until mid-1992, all MFSL gold CDs were pressed by Sanyo. Most of these pressings were made by Sanyo in Japan, although later issues were made at the Sanyo plant in in Richmond, Indiana, USA. They were trademarked UltraDisc (aka UltraDisc I).
In mid-1992, MFSL began pressing their gold CDs in the United States. These pressings were trademarked as UltraDisc II. While most UltraDisc II CDs were manufactured at JVC Disc America, some were still made by JVC in Japan. Between mid-1992 and October 1993, MFSL continued to release both UltraDisc CDs, and UltraDisc II CDs. After October 1993, all MFSL CDS were UltraDisc II CDs.
Production Information: UltraDisc CDs were manufactured using a polycarbonate coating bonded with 24 kt. gold, then applied with a vacuum particle deposit ionization plating process. This process produced a smoother, flatter, and cleaner metallic disc that allows a CD player to more easily read and decode the information on the disc. The reason gold was used is because gold oxidizes ten times slower than aluminum, which is what regular commercial CDs are made of. Additionally, gold is more reflective and coats much more evenly than does aluminum. Furthermore, gold CDs are less susceptible to the pinhole-sized errors that can occur on an aluminum CD during the manufacturing process. The UltraDiscs used 16 bit digital data. Unlike regular commercial CDs, UltraDiscs were able to put the full 16 bits of data on the CD, as the CD spec mandated, due to the jitter-free UltraDisc mastering process.
UltraDiscs: MFSL UltraDiscs, which were first introduced in January 1987, were produced using 24 karat gold on the CD. The first MFSL UltraDisc CDs can be distinguished by the words "Made in Japan," and the UltraDisc logo, printed on the CD. Later pressings of the Ultradisc CDs have "Made in USA" at the bottom of the label.
Title: Dark Side of the Moon (MFSL UltraDisc #1)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 517
Bar Code: 0 1577-51517-2 7
Matrix Information:
1) Bottom: SMF 8006-1A MANUFACTURED BY UTC 1A1
2) Bottom: SMF 8006-2A MANUFACTURED BY UTC 1B1 [L1]
3) Bottom: SMF 8006-1C MANUFACTURED BY ULTECH UDCD 517 [L1] [L2]
4) Bottom: SMF 8006-1C MANUFACTURED BY ULTECH UDCD 517 SP:Z1B SPR 147R6 [L2]
5) Bottom: SMF 8006-1D MANUFACTURED BY ULTECH UDCD 517
Original Price: $29.99
Pressing Plant: Ultech, Japan
Production Mastering: Ultech, Japan
Release Date: April 1988
Release Information: Original UltraDisc release with CD made in Japan. Produced and distributed by Mobile Fidelity Sound Lab, Inc., under license from Harvest Records, Inc. Digital mastering by Krieg Wunderlich. MFSL original master recording, 24 karat gold UltraDisc. Issued in a plastic jewel case that features the lift / lock system for holding the CD. Disc reads 10 tracks.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 42:56
Track Peak Levels: 29.3 / 34.1 / 39.2 / 40.3 / 41.5 / 56.3 / 49.2 / 57.8 / 52.9 / 60.0
Description:
Front Cover: Black with prism. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo. "ULTRADISC."
Booklet: [front] [back] 8-pane two sided fold-open booklet.
Longbox: Some copies of this CD were issued in a black plastic longbox case that displayed the cover at the top and the gold UltraDisc at the bottom. The CD was held in a plastic jewel case that featured the lift / lock system for holding the CD. On the back of the plastic longbox case is a cardboard backing that lists the title, along with the songs and timings at the top, and a description of the UltraDisc formula at the bottom (two different variations of the Ultradisc descriptions have been found on the back of the longboxes). Bar code at the bottom.
Label #1 [L1]: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
To the right of the center hole, it says: "ULTRADISC."
At the top edge of the label, it says:
Label #2 [L2]: At the top of the label, it says: PURE GOLD PLATED
Title: Dark Side of the Moon (MFSL UltraDisc #2)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 517
Bar Code: 0 1577-51517-2 7
Matrix Information:
1) Top: UDCD 517 1D MFD BY JVC
Release Information: Second UltraDisc release with CD made in the U.S. Produced and distributed by Mobile Fidelity Sound Lab, Inc., under license from Harvest Records, Inc. Digital mastering by Krieg Wunderlich. MFSL original master recording, 24 karat gold UltraDisc. 8-page fold-open booklet. Issued in a plastic jewel case that features the lift / lock system for holding the CD. Disc reads 10 tracks.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Description:
Front Cover: Black with prism. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo. "ULTRADISC."
Longbox: Some copies of this CD were issued in a black plastic longbox case that displayed the cover at the top and the gold UltraDisc at the bottom. The CD was held in a plastic jewel case that featured the lift / lock system for holding the CD. On the back of the plastic longbox case is a cardboard backing that lists the title, along with the songs and timings at the top, and a description of the UltraDisc formula at the bottom (two different variations of the Ultradisc descriptions have been found on the back of the longboxes). Bar code at the bottom.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
To the right of the center hole, it says "ULTRADISC."
At the top edge of the label, it says:
In 1989, Mobile Fidelity Sound Lab released the Pink Floyd album, Meddle, as a 24 karat gold UltraDisc CD.
Title: Meddle (MFSL UltraDisc)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 518
Bar Code: 0 1577-51518-2 6
Matrix Information:
1) Top: UDCD 518 SMF9012-1B MANUFACTURED BY ULTECH
Original Price: $29.99
Pressing Plant: Ultech, Japan
Production Mastering: Ultech, Japan
Release Date: April 1989
Release Information: Manufactured and distributed by MFSL, Inc., under license from Harvest Records, Inc. MFSL original master recording, 24 karat gold UltraDisc. CD made in Japan. Issued in a plastic jewel case that features the lift / lock system for holding the CD.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 46:48
Track Peak Levels: 91.8 / 69.7 / 100 / 100 / 45.6 / 84.3
Description:
Front Cover: Sound waves on an ear. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo.
Booklet: [front] [back] 8 page fold-open booklet.
Longbox: Some copies of this CD were issued in a black plastic longbox case that displayed the cover at the top and the gold UltraDisc at the bottom. The CD was held in a plastic jewel case that featured the lift / lock system for holding the CD. On the back of the plastic longbox case is a cardboard backing that lists the title, along with the songs and timings at the top, and a description of the UltraDisc formula at the bottom (two different variations of the Ultradisc descriptions have been found on the back of the longboxes). Bar code at the bottom.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
At the top edge of the label, it says:
Title: Meddle (MFSL UltraDisc #2)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 518
Bar Code: 0 1577-51518-2 6
Matrix Information:
1) Top: UDCD 518 1D (11) MFG BY JVC
Pressing Plant: JVC
Production Mastering: JVC
Release Information: Second UltraDisc release with CD made in the U.S. Produced and distributed by Mobile Fidelity Sound Lab, Inc., under license from Harvest Records, Inc. MFSL original master recording, 24 karat gold UltraDisc. Issued in a plastic jewel case that features the lift / lock system for holding the CD.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 46:48
Track Peak Levels: 91.8 / 69.7 / 100 / 100 / 45.6 / 84.3
Description:
Front Cover: Sound waves on an ear. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo.
Booklet: [front] [back] 8 page fold-open booklet.
Longbox: Some copies of this CD were issued in a black plastic longbox case that displayed the cover at the top and the gold UltraDisc at the bottom. The CD was held in a plastic jewel case that featured the lift / lock system for holding the CD. On the back of the plastic longbox case is a cardboard backing that lists the title, along with the songs and timings at the top, and a description of the UltraDisc formula at the bottom (two different variations of the Ultradisc descriptions have been found on the back of the longboxes). Bar code at the bottom.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
At the top edge of the label, it says:
In 1990, Mobile Fidelity Sound Lab released the Pink Floyd album, The Wall, as a limited edition, 24 karat gold, double UltraDisc CD. MFSL manufactured this release only from September 1990 through September 1991. This was the only MFSL CD out of 258 releases that was issued in a limited edition. It was originally released with the CDs packaged in a special cardboard longbox.
Title: The Wall (MFSL UltraDisc)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 2-537
Matrix Information:
1) Disc 1 - Top: UDCD2-537 1 SP 4WA SPR
-- Disc 2 - Top: UDCD2-537 2 SP 4XA SPR
2) Disc 1 - Top: UDCD2-537 1 SP 4WB SPR
-- Disc 2 - Top: UDCD2-537 2 SP 4XB SPR
Original Price: $32.49
Production Information: Produced and distributed by MFSL, Inc., under license from CBS Special Products, a division of CBS Records, Inc. and Pink Floyd Music, Ltd. Digital remastering by Krieg Wunderlich.
Release Date: September 15, 1990
Release Information: Original issue limited edition in a longbox. Mobile Fidelity manufactured this release only from September 1990 through February 1991. Original master recording on 24 karat gold UltraDisc by Mobile Fidelity Sound Lab. Inside the longbox was a cardboard slip case that encased the two CDs, a foam separator, and a 16-page booklet with lyrics and Scarfe drawings. Each CD was housed in a separate plastic jewel case that featured the lift / lock system for holding the CD. Each CD case had a single pane insert cover.
Description:
Description:
Longbox: White brick wall longbox, with Original Master Recording in a gold strip at the top, and the title in the center. Bar code.
Slipcase: White brick wall slipcase with Original Master Recording in black at the top. Bar code.
Booklet: [front] [back] 16-page fold-open booklet with lyrics and Scarfe drawings.
Disc One:
Front Cover: Black frame with white brick and title in the center. Original Master Recording in a gold strip at the top.
Back Cover: Black with title and song titles. In the top right is the catalog number and MFSL logo. In the top left is the Ultradisc and Columbia logo. On the plastic case it says "PATENTS PENDING."
Booklet: [front] [back] Single sheet title booklet.
Label: Matte black label on a gold disk, with the label information and bricks etched out so that it appears to be written in gold.
At the top edge of the label, it says:
Title: The Wall (MFSL UltraDisc 2nd edition)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 2-537
Production Information: Produced and distributed by MFSL, Inc., under license from CBS Special Products, a division of CBS Records, Inc. and Pink Floyd Music, Ltd. Digital remastering by Krieg Wunderlich.
Release Date: March 1991
Release Information: Continued production of the limited edition without the longbox. Mobile Fidelity manufactured this release only from March 1991 through September 1991. Original master recording on 24 karat gold UltraDisc by Mobile Fidelity Sound Lab. Issued in a cardboard slip case that encased the two CDs, a foam separator, and a 16-page booklet with lyrics and Scarfe drawings. Each CD was in a separate plastic jewel case that featured the lift / lock system for holding the CD. Also issued in a plastic jewel case that used the standard plastic circular prong to hold the CD. Each CD case had a single pane insert cover.
Description:
Slipcase: White brick wall slipcase with Original Master Recording in black at the top. Bar code.
Cover Sticker: Black Ultradisc sticker.
Booklet: [front] [back] 16-page fold-open booklet with lyrics and Scarfe drawings.
Disc One:
Front Cover: Black frame with white brick and title in the center. Original Master Recording in a gold strip at the top.
Back Cover: Black with title and song titles. In the top right is the catalog number and MFSL logo. In the top left is the Ultradisc and Columbia logo. On the plastic case it says "PATENTS PENDING."
Booklet: [front] [back] Single sheet title booklet.
Label: Matte black label on a gold disk, with the label information and bricks etched out so that it appears to be written in gold.
At the top edge of the label, it says:
GAIN System: In 1988, Herb Belkin, the President of Mobile Fidelity Sound Lab, commissioned audio engineers Nelson Pass and Mike Moffat to create the GAIN system. GAIN stands for Greater Ambient Information Network. The idea behind the GAIN system was to minimize the gain stages in the recording process. Instead of the four to seven gain stages usually found in amplifiers, MFSL's GAIN system used Pass SE units with just three gain stages in the signal path, resulting in minimum signal degradation. This GAIN system was first used at MFSL in 1993.
Production Information: For UltraDisc II CDs, a digital GAIN system was used with an analog-to-digital signal converter designed by Mike Moffat that featured a super-accurate sample clock within the analog-to-digital converter. An XLR interface tied all the GAIN system components together.
UltraDisc II: Prior to 1992, all MFSL gold CDs were trademarked as UltraDisc CDs. In mid-1992, Mobile Fidelity began pressing their gold CDs in the United States. These American pressings were trademarked as UltraDisc II's.
Title: Dark Side of the Moon (MFSL UltraDisc II #1)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 517
Bar Code: 0 1577-51517-2 7
Matrix Information:
1) Top: UDCD 517 5C MFD BY JVC
2) Top: UDCD 517 5C12 MFD BY JVC
3) Top: UDCD 517 1D MFD BY JVC
4) Top: UDCD 517 1D 22 MFD BY JVC
Pressing Plant: JVC
Production Mastering: JVC
Release Date: 1993
Release Information: UltraDisc II release. MFSL original master recording, 24 karat gold UltraDisc II. 8 page fold-open booklet.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 42:59
Track Peak Levels: 29.3 / 34.1 / 39.2 / 40.3 / 41.5 / 56.3 / 49.2 / 57.8 / 52.9 / 60.0
Description:
Front Cover: Black with prism. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo. "ULTRADISC II."
Booklet: [front] [back] 8-pane two sided fold-open booklet.
Cover wrap-around: Issued in a plastic jewel case that featured the lift / lock system for holding the CD, with a thin paper cover wrap-around on the outside. The front of the wrap-around extended around the front left side of the CD, and says "UltraDisc II - The Ultimate Listening Experience! - The original limited edition 24-karat gold audiophile collector's disc." The spine of the CD is covered by the wrap-around on the top and left side, with the CD title and catalog number on both, and the bar code on the top flap. The back of the wrap-around had the CD title, songs, catalog number, and an explanation of UltraDisc II. The inside of the wrap-around has a listing of MFSL titles available as of September 1993.
Longbox: Some copies of this CD were issued in a cardboard longbox case with a red strip containing the words "Original Master Recording" across the top, and a round UltraDisc sticker on the front.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
To the right of the center hole, it says "ULTRADISC II."
At the top edge of the label, it says:
Title: Dark Side of the Moon (MFSL UltraDisc II #2)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 517
Bar Code: 0 1577-51517-2 7
Matrix Information:
1) Top: ZOMAX OPTICAL-PLYMOUTH MN-Z11324 OK183 <1005> [IFPI 3B41]
Original Price: $24.99
Pressing Plant: Zomax Optical, Plymouth, Minnesota
Production Mastering: Zomax Optical, Plymouth, Minnesota
Release Information: Second UltraDisc II release. MFSL original master recording, 24 karat gold UltraDisc II. 8 page fold-open booklet. Disc reads 10 tracks.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 42:59
Track Peak Levels: 29.3 / 34.1 / 39.2 / 40.3 / 41.5 / 56.3 / 49.2 / 57.8 / 52.9 / 60.0
Description:
Front Cover: Black with prism. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo. "ULTRADISC II."
Booklet: [front] [back] 8-pane two sided fold-open booklet.
Longbox: Issued in a black plastic longbox case that displayed the cover at the top and the gold UltraDisc at the bottom. The CD was held in a plastic jewel case that featured the lift / lock system for holding the CD. On the back of the plastic longbox case is a cardboard backing that lists the title, along with the songs and timings at the top, and a description of the UltraDisc II formula at the bottom. Bar code at the bottom.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
To the right of the center hole, it says "ULTRADISC II."
At the top edge of the label, it says:
Title: Meddle (MFSL UltraDisc II)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 518
Bar Code: 0 15775-15182 6
Matrix Information:
1) Top: UDCD 518 1D 24 MFD BY JVC
Original Price: $24.99
Pressing Plant: JVC
Production Mastering: JVC
Release Date: 1993
Release Information: Third MFSL issue. Manufactured and distributed by MFSL, Inc., under license from Harvest Records, Inc. MFSL original master recording, 24 karat gold UltraDisc II. 8 page fold-out booklet.
First issue: Issued in a black plastic longbox case that displayed the cover at the top and the gold UltraDisc at the bottom. The CD was held in a plastic jewel case that featured the lift / lock system for holding the CD. On the back of the plastic longbox case is a cardboard backing that lists the title, along with the songs and timings at the top, and a description of the UltraDisc II formula at the bottom. Bar code at the bottom.
Second issue: [front] [back] Issued in a plastic jewel case that featured the lift / lock system for holding the CD, with a thin paper cover wrap-around on the outside. The front of the wrap-around extended around the front left side of the CD, and says "UltraDisc II - The Ultimate Listening Experience! - The original limited edition 24-karat gold audiophile collector's disc." The spine of the CD is covered by the wrap-around on the top and left side, with the CD title and catalog number on both, and the bar code on the top flap. The back of the wrap-around had the CD title, songs, catalog number, and an explanation of UltraDisc II. The inside of the wrap-around has a listing of MFSL titles available as of September 1993.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 46:48
Track Peak Levels: 91.8 / 69.7 / 100 / 100 / 45.6 / 84.3
Description:
Front Cover: Sound waves on an ear. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
At the top edge of the label, it says:
Title: Meddle (MFSL UltraDisc II #2)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 518
Bar Code: 0 15775-15182 6
Matrix Information:
Top: ZOMAX OPTICAL-PLYMOUTH MN-Z11369 0GZG2<1005>
Original Price: $24.99
Pressing Plant: Zomax Optical, Plymouth, Minnesota
Production Mastering: Zomax Optical, Plymouth, Minnesota
Release Information: Fourth MFSL issue. MFSL original master recording, 24 karat gold UltraDisc II. 8 page fold-out booklet.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Description:
Front Cover: Sound waves on an ear. Across the top in gold it says Original Master Recording.
Back Cover: Black. Title. Song titles. Credits. In the lower right is the bar code. Lower center is the MFSL logo. Lower left is the Harvest logo.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
At the top edge of the label, it says:
Pressing Plant: In 1988, the JVC pressing plant in Yokohama, Japan, that Mobile Fidelity Sound Lab had used to press vinyl albums closed down. In the early 1990s, MFSL spent over a million dollars to build a new pressing plant near Sebastopol, California. This new plant produced vinyl records from 1994 to 1996, before closing down due to rising costs and low sales of vinyl LPs. The Atom Heart Mother ANADISQ 200 LP was produced at the California pressing plant.
Production Information:
Metal Laquer Disc Cutting: To produce an ANADISQ 200 LP, the disc cutting process began with the use of the original stereo master tape. To cut the metal lacquer, the disc cutting turntable was rotated at 16 2/3 rpm, while the master tape was played at one-half the actual recorded speed. This half-speed disc cutting process allowed the cutting stylus twice as much time to carve an accurate groove. The GAIN system was used in the process, which featured Pass SE units with only three gain stages in the signal path. This resulted in minimal signal degradation and better quality discs. No transformers or limiters were used in the process.
Plating Process: MFSL used a unique 18-24 hour plating process where the lacquers were processed into the metal masters and stampers used to produce the ANADISQ 200 pressings. The number of final pressings was restricted to insure the quality of every pressing.
Production Length: Each ANADISQ 200 Original Master Recording release required a minimum of three months to complete.
Sound Quality of LPs vs. CDs: There has been much debate between music listeners over whether vinyl albums or compact discs have the better sound quality. It is interesting to note that MFSL continued producing vinyl record albums into the 1990s, investing heavily in a record pressing plant long after vinyl albums had been replaced in record stores by the CD. Discussing this issue in an article about MFSL in Goldmine Magazine, Mobile Fidelity Sound Lab engineer Shawn Britton talked about the sound of vinyl LPs, stating, "There's a lot more to sound than just what your ears perceive. There's psychoacoustics, and mathematically because of the sample rate of typical compact discs, you're missing information. You're looking out your bay window, onto the river, and you can crank those vertical blinds slightly to where they're not parallel any more, they start closing. That's what CD audio is like. A bit of the information is missing. And in comparing CD to LP, the resolution's not there. That's why a lot of the audiophiles say LPs sound better. A lot of people can perceive that. If you play it for them, and you A/B with a very valid comparison, same cabling, same pre-amp, same amplification, you do an A/B switching, most people can perceive that. Joe and Jane six-pack, if you point out to them how to listen, they say, "I see what you mean." What most people hear is the room, the ambient information. That lack of information is what we address in our analog-to-digital converter technology. With custom built high-resolution electronics from Theta Digital, we can get the listener closer to the actual sonics of the master tape, closer to the LP sound."
Vinyl Weight: MFSL ANADISQ 200 LPs were pressed on high quality vinyl with a standard mass of approximately 200 grams.
Title: Atom Heart Mother (MFSL issue)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: MFSL 1-202
Matrix Information: (side 1 / side 2)
1) MFSL 1-202 A-GL-1 KL/2 / MFSL 1-202 B-GL-1 KL/2 (both written)
Release Date: 1994
Release Information: Numbered, limited edition, half-speed Original Master Recording on high quality vinyl. ANADISQ 200. Includes insert.
Test Pressing: A test pressing was made on two one-sided discs. No cover. Labels are white with " Original Master Recording, Mobile Fidelity Sound Lab, a division of MFSL, Inc." in brown across the top. Underneath it says "TEST PRESSING" in black. The selection number is: MFSL 202-A / B. The date is: 1-5-94. The matrix information is: MFSL 1-202-A-GL-1 KL/2 / MFSL 1-202-B-GL-1 KL/2.
Vinyl Weight: 204 grams
Description: Gatefold cover.
Front Cover: A cow. Across the top, in a black strip, it says "Original Master Recording." Glossy.
Back Cover: More cows. Across the top, in a black strip, it says "Original Master Recording." Across the bottom is a white strip. In the lower left is a black box with "Special Limited Edition" at the top and a number stamped in gold. Next to the box is the ANADISQ 200 logo and the MFSL logo, followed by "Half-Speed Production and Mastering by Original Masteringworks TM. Specially plated and pressed on 200 grams of High Definition Vinyl. Special Static Free-Dust Free Inner Sleeve. Heavy Duty Protective Packaging. Mastered from the Original Master Tapes. Manufactured and Distributed by MFSL, Inc., 105 Morris Street, Sebastopol, CA 95472, Under license from CEMA
Special Markets © P 1970. All Rights Reserved." To the right of the production details is the Harvest logo, and a scancode (15775 12021 1).
Inner Sleeve: Cardboard 4-page wrap-around inner sleeve cover. Technical details on the two outside parts. Record is housed in a special static-free, dust-free inner sleeve.
Plastic Cover: Released sealed in a medium weight plastic cover. The plastic cover had a small hole in the center for ventilation, and was perforated along the right side to tear off to open.
Label: White MFSL label with black text. At the top in brown text it says "ORIGINAL MASTER RECORDING TM MOBILE FIDELITY SOUND LAB a division of MFSL, INC." At the bottom it says "Produced and distributed by MFSL, Inc., under license from CEMA
Special Markets, © P 1970 All Rights Reserved."
Title: Atom Heart Mother (MFSL UltraDisc II)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 595
Bar Code: 0 15775 15952 5
Matrix Information:
1) Top: UDCD595 1C 3 MFD BY JVC
2) Top: UDCD595 1C 11 MFD BY JVC
Original Price: $24.99
Pressing Plant: JVC Disc America, Tuscaloosa, Alabama
Release Date: January 1994
Release Information: MFSL Original Master Recording. Gold UltraDisc II with the gain system. Issued in a plastic jewel case that features the lift / lock system for holding the CD.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 52:50
Track Peak Levels: 91.2 / 58.4 / 94.6 / 77.5 / 82.5
Description:
Front Cover: Picture of a cow. Across the top in gold it says Original Master Recording.
Back Cover: Title. Song titles. Credits. In the lower right is the bar code. Lower center is the Harvest logo. Lower left is the catalog number and the MFSL logo.
Booklet: [front] [2-3] [4-5] [6-7] [8-9] [10-11] [back] 12-page booklet.
J-Card #1: [front] [back] Some copies were issued with a J-card, a thin paper cover wrap-around on the outside. The front of the wrap-around extended around the front left side of the CD, and says "UltraDisc II - The Ultimate Listening Experience! - The original limited edition 24-karat gold audiophile collector's disc." The spine of the CD is covered by the wrap-around on the top and left side, with the CD title and catalog number on both, and the bar code on the top flap. The back of the wrap-around had the CD title, songs, catalog number, and an explanation of UltraDisc II. The inside of the J Card had an explanation of the Gain System.
J-Card #2: [front] [back] Some copies were issued with a J-card, a thin paper cover wrap-around on the outside. The front of the wrap-around extended around the front left side of the CD, and says "UltraDisc II - The Ultimate Listening Experience! - The original limited edition 24-karat gold audiophile collector's disc." The spine of the CD is covered by the wrap-around on the top and left side, with the CD title and catalog number on both, and the bar code on the top flap. The back of the wrap-around had the CD title, songs, catalog number, and an explanation of UltraDisc II. The inside of the J Card had an list of MFSL UltraDisc II CDs.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
At the top edge of the label, it says:
Title: Atom Heart Mother (MFSL UltraDisc II)
Record Company: Mobile Fidelity Sound Lab
Catalog Number: UDCD 595
Bar Code: 0 15775 15952 5
Matrix Information:
1) Top: ZOMAX OPTICAL-PLYMOUTH MN-Z11374 0KDB3 <1005>
Original Price: $24.99
Pressing Plant: Zomax Optical, Plymouth, Minnesota
Production Mastering: Zomax Optical, Plymouth, Minnesota
Release Information: Second MFSL pressing, now made in Minnesota. Gold UltraDisc II with the gain system.
Sound Mastering: Remastered by Mobile Fidelity Sound Lab.
Total Time: 52:50
Track Peak Levels: 91.2 / 58.4 / 94.6 / 77.5 / 82.5
Description:
Front Cover: Picture of a cow. Across the top in gold it says Original Master Recording.
Back Cover: Title. Song titles. Credits. In the lower right is the bar code. Lower center is the Harvest logo. Lower left is the catalog number and the MFSL logo.
Booklet: 12-page booklet.
Label: Matte black label on a gold disk, with the label information etched out so that it appears to be written in gold.
At the top edge of the label, it says:
Ummagumma Original Master Recording Production Note: In 1994, Mobile Fidelity Sound Lab also had plans to produce an Original Master Recording release of the 1969 Pink Floyd double album, Ummagumma. However, this release never occurred because the original master tapes for the record were found to have severely deteriorated over the years.
