Compact Disc Digital Audio, also known as Digital Audio Compact Disc or simply as Audio CD, is the standard format for audio compact discs. The standard is defined in the Red Book technical specificat
Dutch inventor and Philips chief engineer Kees Schouhamer Immink was part of the team that produced the standard compact disc in 1980
Sony Discman D-E307CK portable CD player with 1-bit DAC
An optical disc is a flat, usually disc-shaped object that stores information in the form of physical variations on its surface that can be read with a beam of light. Optical discs can be reflective,
The optical lens of a compact disc drive
Optical discs are not vulnerable to water.
An earlier analog optical disc recorded in 1935 for Lichttonorgel [de] (sampling organ)