DVDRHelp.com Forum Archive - Ice Age Collectors edition - problem - disk 1. I've had trouble backing up Ice Age. Here are some recommendations on what to do if DVDDecryptor fails. There is "AnyDVD":http://www.slysoft.com/en/anydvd.html, which is a driver that makes the DVD appear to be unencrypted. Pretty smart really. Then you can use other programs like it was just a file system.
"DVDRBase":http://www.dvdrbase.com/archive/index.php/t-21410 says that some are just hard to rip and recommends a host of different backup programs. CladDVD is the big one.