Something that would scan my movie on my pc and then fix audio and video errors AND freezing. I use Divxrepair to supposedly help with the situation and I burn/encode with dvdsanta. Most of the time it works great, but on a couple of movies i made the video/audio freezes (usually toward the last 15-20 min of the film), and then it goes back to the beginning. Please post feedback.
Dvd x rescue. It's banned, but you can get a pre-banned copy. I have one and use it often. Works great, fixed a dvd of mine that couldn't even get past the first warning screen of it and restored it back to original quality.