In Reply to: RE: All you need do is... posted by zacster on November 22, 2021 at 14:00:27:
'80s era. At least only publicly available since the 80s.
I refer to the technology behind the media itself - not the familiar application that followed afterwards.
"The first digitally recorded optical disc was a 5-inch audio compact disc (CD) in a read-only format created by Sony and Philips in 1975.[55]"
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