I have been using rempeg to great success but have come across a problem with 2 discs - Oceans eleven region 1 and harry potter region 2. On lowering the bitrate in exactly the same way as other films they both are all all corrupt, you can see the picture but it is like it has been encoded at very low resolution, however the opening warner logo is fine, its only as the titles start that the corruption begins, i have tried loads of settings and cant sort the prob, any ideas. Cheers peeps... I am using smartripper to rip the dvd...