I also echo the " bad source disc " theory. I have backed up this movie using
AnyDVD and
CloneDVD2 and it was no problem. But I see you are in a different region than I am. I am in region 1, and your disc is PAL so you must be region 2, ( maybe) sometimes different regions have different protections, that said we have many region 2 PAL users here and this disc was not a problem. So maybe try returning or really cleaning the disc well. Sorry if this doesn't help.
