I am trying to burn DVD's using Sonic MyDVD Plus. When I download a movie from Limewire, the file size usually comes out to be 600-700 MB. Naive Questions: 1. If a DVD had over i GB capacity, why doesn't a 700 MB file fit on it? When burning a 700MB movie, I always have to resort to the "VCR Quality" setting. 2. I downloaded "Star wars-Revenge of the Sith", a long movie. I didn't expect it to fit on an ordinary DVD, so I got some dual-layer 8.5 GB DVD's and it still wouldn't fit at any quality setting 3. Which matters more in burning DVD's, the length of the movie, or the size of the file? 4. Can I somehow tell the Sonic program to divide the movie, so that I can burn it on two DVD's?