I have tried setting various settings, including AI scanner disabled, Very Fast, Fast, Thorough and Deep Scan and I cannot get it to work with AnyDVD 6.1.9.5. I have also tried RipIt4Me, DVDFab HD 4.0.0.8 beta and DVD43. None of them work. I did see another thread on the internets, where someone tried using different burners and was able to get it to work on a specific burner, but they couldn't get it to work on 3 other burners they had. And if you do a web search, you will find there a lot of other people reporting problems with other copy software.I backed up this movie no problems using AnyDvd 6.1.9.5 and CloneDvd2 2.9.1.2.
So, I think there is some new encryption on Ratatouille.