Excellent advice you got there. The compression is definitely the most important issue. If you’re doing full disc backups, that is why the picture quality is bad. As cnlson said, try to remove as much unnecessary parts as possible. For me I only ever do movie only backups as I don’t care about the extras, menus, etc. Definitely remove all foreign language tracks as that’ll help with space. On some movies even doing a movie only gives me less than 70% at which point I switch to another method of backing up that involves reencoding the video rather than just transcoding. Also, deep analysis mode may take longer, but, it will provide infinitely better results. What it does(more or less) is analyze what scenes need a higher bitrate and what scenes can lower the bitrate without losing picture quality. The general rule of the thumb on backups is the longer it takes to back it up the higher the quality you’ll eventually get. My personal rule is that if I’m taking the time to back something up, I want it done right…so if it takes 4 hours to create the ISO backup file, so be it. In DVD Shrink’s case I’ve never seen it take more than 45 minutes even with deep analysis mode enabled. Also in a couple weeks a new version of DVD Shrink is coming out that will improve quality of the “harder” to back up movies so make sure you check that out when it’s released.