be sure to right click a file you are interested in and do a Bitzi check on the file. avi files may vary from 149 mb to 700 mb depending on the quality. A dvd file is usually in the upper 600 mb range. Not all files are correctly named or even playable. Bitzi will hep you confirm this. Also after you have started a download and have enough to truly preview go to wwwdotavipreviewdotcom and get the avi preview player. It's free.