Hi, i'm trying to backup LOTR-two towers disc 2, but when ripping with dvd decryptor it only gets 2 14% and stops on one of the vob files. It keeps on trying to rip it but nothing happens and i have to cancel. also tried with smartripper. do you think the disc is scratched? or any i do something foolish? (though i have rippen plenty dvds before ok). any help appreciated. thanks..