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16-bit) is established for Compact Disc Digital Audio.
*1980: Mitsubishi Electric introduces the X-80 ProDigi open reel 1/4" tape 50.4 kHz 16-bit digital recorder ($5000 ). Only 200 are sold worldwide.
*1980: Soundstream merges with Digital Recording Corporation, becoming DRC/Soundstream, to develop and market 50 kHz PCM recording to an optical card. This is subsequently

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