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D V D stands for Digital VIRTUAL Disc not VIDEO
The difference is that it can accomodate NUMEROUS formats, and explains how Disney, say, could put games on a title for CD-ROM PC's or other types of audio, for example. CD-ROMS with CD and data files side-by-side have existed since about 1998.
Any number of data, audio and video formats are available on DVD. The common thread is basically the encoding system of compressed signal used for mastering them, a form of MPEG (4?).
If that helps.
Carrier is 90% CCW in phase---
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