Coloured scanning electron micrograph (SEM) of Compact disc surface (CD, CD-ROM). A CD is a plastic disc that is etched or pressed with a series of fine depressions representing the digitized audio
Compact disc (CD) | Definition & Facts | Britannica
Premium Photo | Vintage cd or dvd disk surface, old circle discs used for data storage.
Verbatim Cd-r 700mb 52x With Branded Surface - 10pk Bulk Box - 120mm - 1.33 Hour Maximum Recording Time : Target