CD-R

from WordNet (r) 3.0 (2006)

CD-R
    n 1: a compact disc on which you can write only once and
         thereafter is read-only memory [syn: {CD-R}, {compact disc
         recordable}, {CD-WO}, {compact disc write-once}]

from The Collaborative International Dictionary of English v.0.48

CD-R \CD-R\ n. [from Compact Disk-Recordable.]
   a recordable compact disk; a compact disc on which you can
   write only once and thereafter is read-only.

   Syn: compact disc recordable, CD-WO, compact disc write-once.
        [WordNet 1.5]

from The Free On-line Dictionary of Computing (8 July 2008)

Compact Disc Recordable
CD-R

   <storage> (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
   (http://www-us.sv.philips.com/newtech/cdrewritable.html).

   See also {CD-RW} and {DVD-RAM}.

   (1999-08-01)

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

CDR
       Compact Disk - Recordable (CD), "CD-R"

from V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006)

CDR
       Contents of the Decrement Register (IBM, ELISP, CAR)