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History
CD-RW
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CD-RW is a digital optical disc storage format introduced in 1997. A CD-RW compact disc (CD-RWs) can be written, read, erased, and re-written.
CD-RW with distinctively darker data surface than a CD-R and a factory-pressed CD-ROM.
CD-RW with distinctively darker data surface than a CD-R and a factory-pressed CD-ROM.
Data structure on a CD-RW
Data structure on a CD-RW
Optical disc
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An optical disc is a flat, usually disc-shaped object that stores information in the form of physical variations on its surface that can be read with the aid of a beam of light. Optical discs can be reflective, where the light source and detector are on the same side of the disc, or transmissive, where light shines through the disc to be detected on the other side.
The optical lens of a compact disc drive.
The optical lens of a compact disc drive.
LaserCard made by Drexler Technology Corporation.
LaserCard made by Drexler Technology Corporation.
Optical discs are not vulnerable to water.
Optical discs are not vulnerable to water.
An earlier analog optical disc recorded in 1935 for Lichttonorgel [de] (sampling organ)
An earlier analog optical disc recorded in 1935 for Lichttonorgel [de] (sampling organ)