Date: 2007-06-15 09:45 pm (UTC)
I'm not really the best person to advise on this -- I am not at all familiar with AVID or Sorenson.

Basically, to make a DVD, you need mpeg files, which can either be a single .mpg file with both audio and video ("muxed") or 2 files ("demuxed"), m2v (video) and then something for the audio, preferably uncompressed .wav, but mp2 can work.

You don't need a DVD *burning* program to combine demuxed files, you need a program that does DVD authoring. There are many, from very simple to professional level. (Some won't accept demuxed files, but the better ones will.)

When they get big, they're more likely to cause problems while playing on the computer, and we've got lots of RAM and fast CPUs and STILL get problems with large song files.

How "big" is big? If it's under a gig, I'd say you have some other sort of problem happening. My uncompressed .avi files straight out of Premiere are almost a gig and they play fine on my 5 year old vidding computer. I play files of anywhere from 300-800 megs on my nearly-as-old laptop all the time without a problem. An mpg file for an average vid, encoded at 5400-ish, shouldn't really be over 200 megs.

As for pulling files out of an ISO -- you may be able to rip it as you'd do with a disc, but that, to me, would be more complicated than authoring a simple DVD straight from mpg or m2v/wav files.

There's no simple answer for what you're trying to do... I can only speak for myself and say I can't really envision the circumstances under which I'd burn a DVD for a single vid, but it would be nice to have DVD quality files available to download if I wanted to make my own.
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