Interference colors. Iridescent reflections on a compact disc.CD-R disc, bottom side, with interference coloursCD-R (Pencil included for scale)Small CD (with ruler for scale)

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Multi-Disc Players

A compact disc (or CD) is an optical disc used to store digital data, originally developed for storing digital audio. It is the standard playback format for commercial audio recordings today. more...

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A standard compact disc, often known as an "audio CD" to differentiate it from later variants, stores audio data in a format compliant with the red book standard. An audio CD consists of several stereo tracks stored using 16-bit PCM coding at a sampling rate of 44.1 kHz. Standard compact discs have a diameter of 120 mm, though 80 mm versions exist in circular and "business-card" forms. The 120 mm discs can hold 74 minutes of audio, and versions holding 80, 90 or even 99 minutes have been introduced. The 80 mm discs are used as "CD-singles" or novelty "business-card CDs". They hold about 20 minutes of audio. Compact disc technology was later adapted for use as a data storage device, known as a CD-ROM.

History

In the early 1970s, using video Laserdisc technology, Philips' researchers started experiments with "audio-only" optical discs, initially with wideband frequency modulation FM and later digitized PCM audio signals. At the end of the 70s, Philips, Sony, and other companies presented prototypes of digital audio discs.

In 1979 Philips and Sony decided to join forces, setting up a joint taskforce of engineers whose mission was to design the new digital audio disc. Prominent members of the taskforce were Kees Immink and Toshitada Doi. After a year of experimentation and discussion, the taskforce produced the "Red Book", the Compact Disc standard. Philips contributed the general manufacturing process, based on the video Laserdisc technology. Philips also contributed the Eight-to-Fourteen Modulation, EFM, which offers both a large playing time and a high resilience against disc handling damage such as scratches and fingerprints; while Sony contributed the error-correction method, CIRC. The Compact Disc Story, told by a former member of the taskforce, gives background information on the many technical decisions made, including the choice of the sampling frequency, playing time, and disc diameter. According to Philips, the Compact Disc was thus "invented collectively by a large group of people working as a team."

The Compact Disc reached the market in late 1982 in Asia and early the following year in other markets. This event is often seen as the "Big Bang" of the digital audio revolution. The new audio disc was enthusiastically received and its handling quality received particular praise. From its origins as a music format, Compact Disc has grown to encompass other applications. Two years later, in 1985, the CD-ROM (read-only memory) was introduced. With this it was now possible to disseminate massive amounts of computer data instead of digital sound. A user-recordable CD for data storage, CD-R, was introduced in the early 1990s, and it became the de facto standard for exchange and archiving of computer data and music. The CD and its later extensions have been extremely successful: in 2004 the annual worldwide sales of CD-Audio, CD-ROM, and CD-R reached about 30 billion discs.

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Vintage 1993 Teac Model Pd-D850 Cd Multi-Disc Player, 5-DiscVintage 1993 Teac Model Pd-D850 Cd Multi-Disc Player, 5-Disc $129.99 Sony Cdp-Cx205 200 Multi-disc Cd player with remote controlSony Cdp-Cx205 200 Multi-disc Cd player with remote control $125.00
Pioneer Pd-M403 Multi Disc Cd Player With 6 Disc ChangerPioneer Pd-M403 Multi Disc Cd Player With 6 Disc Changer $49.95 Sony Cdp-Cx571 50+1 Cd Player Multi Disc Changer Player Tested & WorkingSony Cdp-Cx571 50+1 Cd Player Multi Disc Changer Player Tested & Working $30.99
New ListingBose, Acoustic Wave Ii -( 5 Disc Multi-Disc Changer ), Cd Player- Mint GuaranteeNew ListingBose, Acoustic Wave Ii -( 5 Disc Multi-Disc Changer ), Cd Player- Mint Guarantee $130.00 New ListingPioneer Pd-M550 Multi-disc PlayerNew ListingPioneer Pd-M550 Multi-disc Player $12.99
Magnavox Ar701 Multi Disc PlayerMagnavox Ar701 Multi Disc Player $40.00 Sony Cdp-Cx235 Cd Player 200 Multi Disc Storage Tested Works No Remote New BeltsSony Cdp-Cx235 Cd Player 200 Multi Disc Storage Tested Works No Remote New Belts $169.99
New ListingVintage Pioneer Pd-M403 Multi Disc Cd Player with 6 Disc ChangerNew ListingVintage Pioneer Pd-M403 Multi Disc Cd Player with 6 Disc Changer $98.39 Bose Acoustic Wave Ii 5 Cd Multi-Disc Changer Player For Parts Or RepairBose Acoustic Wave Ii 5 Cd Multi-Disc Changer Player For Parts Or Repair $49.00
Sony Cdp-Cx225 Cd Changer 200 Multi Disc Player Carousel Broken For PartsSony Cdp-Cx225 Cd Changer 200 Multi Disc Player Carousel Broken For Parts $39.99 Pioneer Pd-M510 Multi Disc Compact Disc Cd Changer Player 6 Disc Cartride Incl.Pioneer Pd-M510 Multi Disc Compact Disc Cd Changer Player 6 Disc Cartride Incl. $65.89
Vintage Pioneer Pd-M70 Multi-Disc Cd Player/Changer Powers On. No Cd magazine.Vintage Pioneer Pd-M70 Multi-Disc Cd Player/Changer Powers On. No Cd magazine. $25.00 Kenwood Dp-M6630 Multi Disc Cd Player For Parts Or RepairKenwood Dp-M6630 Multi Disc Cd Player For Parts Or Repair $47.39
Teac Model Pd-D850 Cd Multi-Disc Player, 5-Disc Tested No Remote 2 Cds InvludedTeac Model Pd-D850 Cd Multi-Disc Player, 5-Disc Tested No Remote 2 Cds Invluded $63.00 Phillips Cdr-785 Multi-disc Player / Cd Recorder - *Tested (see below)Phillips Cdr-785 Multi-disc Player / Cd Recorder - *Tested (see below) $99.99
Onkyo Dx-C500 Multi disc Cd PlayerOnkyo Dx-C500 Multi disc Cd Player $24.99 Lot of 2 Pioneer 6-Disc Multi-Disc Cd player magazine for car & home Cd PlayersLot of 2 Pioneer 6-Disc Multi-Disc Cd player magazine for car & home Cd Players $24.95
Pioneer Multi Disc Cd Compact Disc Player Model Pd-M502 Tested and WorkingPioneer Multi Disc Cd Compact Disc Player Model Pd-M502 Tested and Working $71.89 Pioneer 3 Cartridge 18 Multi Disc Cd Player model Pd-Tm2 Parts OnlyPioneer 3 Cartridge 18 Multi Disc Cd Player model Pd-Tm2 Parts Only $99.99
Sony Cdp-Cx235 Cd Player 200 Multi Disc Storage Tested Works no remoteSony Cdp-Cx235 Cd Player 200 Multi Disc Storage Tested Works no remote $139.00 Pioneer Pd-M403 Multi Disc Cd Player With 6 Disc Parts OnlyPioneer Pd-M403 Multi Disc Cd Player With 6 Disc Parts Only $10.00
Optimus Prw-1141 Six (6) Disc Cartridge Magazine for Pioneer Multi Disc PlayersOptimus Prw-1141 Six (6) Disc Cartridge Magazine for Pioneer Multi Disc Players $8.50 Sony Cdp-Cx450 400 Cd Player With Remote Belts Replaced Multi Disc JukeboxSony Cdp-Cx450 400 Cd Player With Remote Belts Replaced Multi Disc Jukebox $259.00
Vintage 1994 Teac Model Pd-D850 Cd Multi-Disc Player, 5-Disc Tested No RemoteVintage 1994 Teac Model Pd-D850 Cd Multi-Disc Player, 5-Disc Tested No Remote $109.99 Mcintosh Mcd-7008 Multi Disc Cd Player(Serviced,1 Owner)Mcintosh Mcd-7008 Multi Disc Cd Player(Serviced,1 Owner) $1,250.00
Vintage Sony Cdp-Cx235 Cd Player 200 Multi Disc Storage Tested Works no remoteVintage Sony Cdp-Cx235 Cd Player 200 Multi Disc Storage Tested Works no remote $129.00 Mcintosh Mcd-7008 Multi Disc Cd Player Read Description Works with some issuesMcintosh Mcd-7008 Multi Disc Cd Player Read Description Works with some issues $849.99
Pioneer Pd-F17 Multi Disc Cd PlayerPioneer Pd-F17 Multi Disc Cd Player $84.00 Pioneer Pd-M40 Multi Disc Cd Player With 6 Disc Changer/ 3 cartridgePioneer Pd-M40 Multi Disc Cd Player With 6 Disc Changer/ 3 cartridge $10.00
Sony Compact Multi Disc Carousel Cd Player Cdp-C205Sony Compact Multi Disc Carousel Cd Player Cdp-C205 $40.00
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Prices current as of last update, 09/18/20 12:20pm.

See also...
10+ Disc Jukeboxes, Multi-Disc Players, CD Players & Recorders
2-4 Disc Changers, Multi-Disc Players, CD Players & Recorders
5 Disc Changers, Multi-Disc Players, CD Players & Recorders
6-10 Disc Changers, Multi-Disc Players, CD Players & Recorders

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