Yeah, it's either the disk or the DVD player. I'm currently testing the disk on my GF's PC. She has the same config as me, except for the DVD player (which comes in handy sometimes :P )
FreeRecordShop better recognize if they sold me a busted DVD. >_<
If so, i have to admit, the DVD was packaged a little shady.. it was in a "broken" anti-theft case with plastic wrapping around the game case, and normally, they keep all disks behind the counter and place empty/fake cases in the racks to prevent theft.