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Compact Disc Recordable

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(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.

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CD-R	Compact Disc Read-Only Memory

Similar in concept to Compact Disc Recordable (CD-R), DVD-R is a write-once medium that can contain any type of information normally stored on mass produced DVD discs--video, audio, images, data files, multimedia programs, and so on.

Everything You Wanted To Know About DVD-R by Parsons, Andy / Computer Technology Review

Unlike Roxio, LCD's software allows music to download from the Internet and instantly and automatically burn to a compact disc recordable (CD-R) in "one click".

Immediatek and LCD Interactive Form Exclusive Partnership on ... by Business Wire

The logo will enable consumers to recognize CD and DVD players that can utilize Compact Disc Recordable (CD-R) and Compact Disc ReWritable (CD-RW) discs recorded on personal computers, and do so as readily as they use pressed discs.

Multiplay Test Discs From OSTA Enable Manufacturers to Assure CD-R ... by Business Wire

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