Recently ran into this with a couple of bike movies I own, but figured it was due to the documentary status etc or something weird like that. Just tried to rip ratatouille today using both handbrake and mac the ripper and neither one could do it. Handbrake just made a 2 mbps file and thought it was done and mac the ripper kept getting errors. From what I googled, it seems that certain movies have errors input into them to stump the programs like handbrake out there. Is there any truth to this?