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2.
A CD.
A small optical disk on which data such as music, text, or graphic images is digitally encoded.
In the 20th century, the spelling compact disc was preferred by persons in the UK, while compact disk was preferred by persons in the USA. Recently, the computer industry has come to use disk, while the music industry uses disc.
Thus, a compact disc will generally contain music.
Gimme back my compact disc!

CD is a better form of compact disc.

Fool--compact disk is spelled with the letter 'c'!
by whey May 25, 2005
 
1.
If you don't know what a compact disc is, you are fuckin' stupid!
I recently baught Aerosmith's 'Toys in the Attic' on compact disc.
by Anonymous July 31, 2003
 
3.
A data storage device that skips and scratches easily and its stored audio files sound like they are recorded in a tin can because of its low quality; recently replaced by the MP3 format and its playing devices
Compact Discs are obsolete.
by Tom Bomb December 27, 2005