It's very difficult to know what the prob is without knowing more details. Personally I don't normally work with compressed files, I start with uncompressed & then compress them into MPeg2 before burning to dvd. Also I'm not a Windows person so I don't have the experience with those softw's. You can either or both supply as many details for me such as the type & size of the movie file u have, &/or browse around some of the links I gave earlier (ie: for links to dvd converting & burning help.) There's a lot of help there & you will also find a forum. You may evn be able to get a direct answer there as to what the bet technique is. Hope this helps.