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CD-RW (Compact Disc-Rewritable) is a digital optical disc storage format introduced by Ricoh in 1997. [1] A CD-RW compact disc (CD-RWs) can be written, read, erased, and re-written. CD-RWs, as opposed to CDs, require specialized readers that have sensitive laser optics.
A CD-RW does not have as great a difference in reflectivity as a pressed CD or a CD-R, and so many earlier CD audio players cannot read CD-RW discs, although most later CD audio players and stand-alone DVD players can. CD-RWs follow the Orange Book standard.
The issue was drop-in compatibility of a rewritable format with the existing DVD-ROM players. Rewritable media (such as magnetic hard disk drives or rewritable CDs) have edit gaps between sectors, to provide a buffer so that any timing inaccuracies in the write clock would not result in new data accidentally overwriting any of the other sectors.
But most boomboxes can playback them all—standard music CDs you buy in a store, books-on-CD, and recordable CD formats such as CD-R and CD-RW that have been “burned” with MP3 music files ...
A compressed audio optical disc, MP3 CD, or MP3 CD-ROM or MP3 DVD is an optical disc (usually a CD-R, CD-RW, DVD-R or DVD-RW) that contains digital audio in the MP3 file format. Discs are written in the "Yellow Book" standard data format (used for CD-ROMs and DVD-ROMs), as opposed to the Red Book standard audio format (used for CD-DA audio CDs).
They are also manufactured as portable devices. Modern units can play other formats in addition to PCM audio coding used in CDs, such as MP3, AAC and WMA. DJs often use players with an adjustable playback speed to alter the pitch and tempo of the music. CD playback functionality is also available on CD-ROM/DVD-ROM drive equipped computers as ...