The specification of the Compact Disc (CD), which was introduced in 1983. The terms Red Book audio, Compact Disc (CD) and CD-DA (CD-Digital Audio) are synonymous. See CD and CD-DA. THIS DEFINITION ...
A cable used to send audio CD sound to the computer's sound card. When playing audio CDs, CD-ROM drives output analog sound to both a headphone jack and external connector just like a CD player.