I have a video file which i have exported as dv avi from adobe premiere which is only 3:40 mins long, but 800 megs. I want to compress this down, but virtualdub is not able to open the file. I have tried in premiere to compress it, but every time i try i get artifacts. Can anybody tell me a good codec pack for virtualdub, or what settings to use, or point me in the direction of a good tutorial?