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When I suggest DVD being similar to VCD I refer to the encoding. Basically DVD is a flavor of MPEG. There is (so far) MPEG1 through MPEG4.
When you think about it, DVD(MPEG2) is just a different algorithm. Nowadays, even relatively low end hardware has the potential to create DVD's. Home DVD making has not been cost effective because the media is expensive and until very recently (Pioneer/Phillips announcements of more affordable DVD burners;not DVDRAM, prices still not announced) the Pioneer DVD burner cost approx 4,000 dollars.
Besides high quality video, DVD offers high quality audio, and a lot of it when you think of the capacity of these disks.
Another disk technology on the horizon uses multiple layers being read with a special laser to offer 120 gigs.
Imagine that, 120 gigs per plastic disk.
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