avi & mpeg/mpg are the best. If you have nero or roxio easy creator then you've no problems. The program will do any necessary conversion for you. I did it using Roxio Toast with multiple short movies onto a dvd without problem. Of course I found I couldn't mix pal & ntsc but I already knew that. There's lots of posts about this here & in the tips & tricks section. Do a look around or search for dvd to find them for more details.