Word:

compact disc recordable

Noun1.compact disc recordable - a compact disc on which you can write only once and thereafter is read-only memory
(storage)Compact Disc Recordable - (CD-R) A write-once version of CD-ROM. CD-Rs can hold about 650 megabytes of data. They are very durable and can be read by normal CD-ROM drives, but once data has been written it cannot be altered.

Standard prerecorded CDs have their information permanently stamped into an aluminium reflecting layer. CD-R discs have a dye-based recording layer and an additional golden reflecting layer.

Digital information is written to the disc by burning (forming) pits in the recording layer in a pattern corresponding to that of a conventional CD.

The laser beam heats the substrate and recording layer to approximately 250 C. The recording layer melts and the substrate expands into the space that becomes available.

Phillips: New Technologies.

See also CD-RW and DVD-RAM.
CD, CD-R, CD-WO, compact disc, compact disc write-once, compact disk
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-- compact disc recordable --
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