I,ve burnt around 350 movies, but i'm always trying to get the best quality as possible. Right know i'm using DVDfab decrypter with clonedvd2 also using taiyo yuden dvd-r blanks. I burn at 4x and i'm still getting some jitters in some movies. Is there something i'm doing wrong or is it the nature of the beast when you are shrinking the movies.
Try using dvdshrink to shrink the movie (and take out the crap), then burn with Nero or Make an ISO and burn with IMGBurn.
I use anydvd to run in the background dvd shrink to rip just the main movie and burn with dvd decrypter done !