"Arny Krueger" wrote in message ...
Guinness Mann wrote:
unitron wrote:
If it's digital, why would there be *any* difference in either the
sound or the picture between the original and the copy?

Because most DVDs won't fit on DVD+/-R media.

That applies only to DVD's that have more than one layer.

All of the DVD copy
programs I know about either leave some things off the copy (typically
at least some of the audio info) or add compression.

No, they just copy the data to more than one piece of DVD-R media,

DVD X-Copy is the only DVD copying software that I know of that will
split a dual layer disc on to two singles, but I haven't done a lot of
looking for other programs to do this. Most of the others, such as DVD
Shrink or X-Copy Express, do require removing unwanted soundtracks
and/or some level of video compression. Some do it automatically, and
others allow you to make you own choices.

Mark