In my experience if you can play something back on your PC but not on your stand-alone, it means the VTS sectors aren't correct. Normally this isn't possible if you follow the guide to the letter, but god knows I've messed it up often enough (okay, only 3 or 4 times - but that's enough). On my stand-alone, the player just goes to STOP, but I can imagine other players might do other things - lockup, go back to main menu, start playing first-play again, whatever. Make sure that correct VTS sectors is the very last thing you do before you image and burn.