I am trying to learn how to rip and burn commercial dvd’s. I purchased the ImTOO DVD Ripper Platinum and I am pretty new at this. A few questions: What format do I want to rip the dvd’s to? I mostly intend to burn them to a blank DVD. I ripped a movie last night in 2 formats one was avi and the other vob. They both played on my Divx player, but I noticed a slight choppiness/framerate issue. When I tried to burn the movie to a blank DVD it was even worse and there was quite a bit of freeze/lockup towards the middle/end of the movie. I have most of the rippers setting to default. What should I look to do?