i bought some movies from someone over the internet on dvdrs they played fine on my stand alone but when i went to make a backup, I got this message when opening the dvd drive folder : "Windows cannot read from this disk. The disk might be corrupted or it could be using a format that is not compatible with windows" This message with dvd decrypter: UDF file system parsing failed! Device: [1:1:0]_NEC_DVD_RW ND-2500A 1.06 (E(ATA) Reason: Function 'UDFFindPartition' returned 0 Is there anything I can do?