I've got a friend who plays the Last of Us with me, but he's been having a few problems getting the game to start up. His PS3 won't show that a disc is in, even though he just inserted The Last of Us. Then he'll switch the disc for another game like GTA V or Dishonored, and it works just fine. Then he reboots the system, and it eventually works after one of these steps. It takes about ten minutes before he's actually able to start playing. There are no marks on the disc and he hasn't experienced any other problems with the Blu Ray reader. Any ideas?