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A portable CD player is a
"History of the Portable Audio Player."
2008-11-27.
A portable CD player is a portable audio player
A portable audio player is a personal mobile device that allows the user to listen to recorded audio while mobile. Sometimes a distinction is made between a ''portable'' player, battery-powered and with one or more small loudspeakers, and a ''pe ...
used to play compact disc
The compact disc (CD) is a Digital media, digital optical disc data storage format co-developed by Philips and Sony to store and play digital audio recordings. It employs the Compact Disc Digital Audio (CD-DA) standard and was capable of hol ...
s. The first audio player released was the Discman D-50 by Sony
is a Japanese multinational conglomerate (company), conglomerate headquartered at Sony City in Minato, Tokyo, Japan. The Sony Group encompasses various businesses, including Sony Corporation (electronics), Sony Semiconductor Solutions (i ...
.Lungu, R"History of the Portable Audio Player."
2008-11-27.
Features
The basic features of a portable CD player are: #Play/Pause button #Stop button #Rewind button #Fast forward button #Hold button (some models) #Liquid crystal display
A liquid-crystal display (LCD) is a flat-panel display or other Electro-optic modulator, electronically modulated optical device that uses the light-modulating properties of liquid crystals combined with polarizers to display information. Liq ...
#Headphone/Audio out socket
The play/pause button allows the user to pause in the middle of a track (song) and resume play where the listener left off by pressing the button again. The stop button stops playing. The fast forward and rewind buttons can be held down to move rapidly forward (fast forward) or backward (rewind) in a track; play will resume once the button is preleased. The liquid crystal display provides a visual indicator of remaining battery life, currently playing track number, and the amount of time elapsed on the track. Some portable CD players can play CD-R
CD-R (Compact disc-recordable) is a digital media, digital optical disc data storage device, storage format. A CD-R disc is a compact disc that can only be Write once read many, written once and read arbitrarily many times.
CD-R discs (CD-Rs) ...
/CD-RW
RW (Compact Disc-Rewritable) is a digital media, digital optical disc data storage device, storage format introduced by Ricoh in 1997. A CD-RW compact disc (CD-RWs) can be written, read, erased, and re-written.
CD-RWs, as opposed to CDs, r ...
discs and some can play other formats such as MP3-encoded audio. While audio typically is output via a headphone connector, higher-end models may feature an additional integrated speaker.
The 8 cm CD provides a smaller alternative to the normal 12 cm CD (although with a lower capacity). Miniature players exist that play only this format.
Some portable CD players feature an externally attached playback controller as depicted, to facilitate control while the main unit is placed in a bag or pocket.
Issues with recordable CDs
Some early portable CD players do not play recordable CDs (CD-R
CD-R (Compact disc-recordable) is a digital media, digital optical disc data storage device, storage format. A CD-R disc is a compact disc that can only be Write once read many, written once and read arbitrarily many times.
CD-R discs (CD-Rs) ...
, CD-RW
RW (Compact Disc-Rewritable) is a digital media, digital optical disc data storage device, storage format introduced by Ricoh in 1997. A CD-RW compact disc (CD-RWs) can be written, read, erased, and re-written.
CD-RWs, as opposed to CDs, r ...
) properly due to the significantly lower reflectivity of CD-RW.
A consumer-recorded CD is recorded by making marks in a thin layer of organic dye, which leads to incompatibility with some CD players. For some users of CD-Rs, the solution to this is to burn the CD at a slower speed or use a different brand of recordable CDs. Burning at too slow a speed can also cause issues. Ideally, CD-Rs should be burned at half their rated maximum speed, for example, a CD-R with a maximum rating of 48x should be burned at 24x.
See also
*CD player
A CD player is an electronic device that plays audio compact discs, which are a digital audio, digital optical disc data storage format. CD players were first sold to consumers in 1982. CDs typically contain recordings of audio material such a ...
* Portable DVD player
* Discman
was a brand name used by Sony for their portable CD players. The first Discman, the Sony D-50 or D-5 (depending on region), was launched in 1984. The Sony brand name for Discman changed to CD Walkman, initially for Japanese lineups launched ...
* Walkman
is a brand of Personal stereo, portable audio players manufactured by Sony since 1979. It was originally introduced as a portable Compact Cassette, cassette player and later expanded to include a range of portable audio products. Since 2011, ...
* Personal stereo
* Portable audio player
A portable audio player is a personal mobile device that allows the user to listen to recorded audio while mobile. Sometimes a distinction is made between a ''portable'' player, battery-powered and with one or more small loudspeakers, and a ''pe ...
* Portable media player
A portable media player (PMP) or digital audio player (DAP) is a portable consumer electronics device capable of storing and playing digital media such as audio, images, and video files. Normally they refer to small, Electric battery, batter ...
References
{{Compact disc navbox Consumer electronics Japanese inventions Portable audio players Portable media players Compact disc players