The CD (Compact Disc) is over fifteen years old, an eternity for things digital. The DVD is designed to replace CDs. By DVD committee decree (by vote of the committee that controls the trademark ‘DVD’, the DVD Forum. DVD stands for Digital Versatile Disc. Improvements to the CD have been technically possible for a long time. The impetus for making the change now is movies, replacing videotape. A DVD can be stamped out for less than a dollar. It replaces videotapes that cost more than twice as much per copy. CDs were for music; DVDs are for video.
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