It took me a day to find it, but I think I found a resource for you to read. There's a great article all about MPEG-4 in the May issue of DV magazine. Basically, there isn't any way for now for you to compress a video in MPEG-4. As a matter of fact, at the end of the article the author explains that the importance of MPEG-4 will mainly be in the broadcast standards, not much in the web videos. Here's the link for the article; http://www.dv.com/magazine/2001/0501/waggoner0501.html I hope this will clear things up. Also, even if you do convert your AVI to MPEG-2, the quality won't be as good as if you did it from a Quicktime format. If you need to get something converted, I might be able to help you out on it. E-mail me and let me know what you want to do (a video, an animation???) If it's not a feature length movie, I might be able to help you on this. My e-mail; rstewar3@san.rr.com Cheers!