Sara's Blu-ray player freezes up about an hour in and won't go forward. Leo says that Blu-ray players are essentially computers and it could easily be that the laser is dirty or damaged. And blu-ray players are cheap, so just buy another one. But if it's part of your Sony PS3, then it would be worth getting it cleaned. But a stand alone Blu-ray player? Just replace it. The chatroom also says that a firmware update could be necessary. The MPAA has made it that blu-ray players have to have their firmware updated in order to play current Blu-ray discs which have a different decryption algorithm.