I decided to watch heat last night but half way through the film it froze for a few moments and returned to the main menu screen. The disc is clean and has no scratches on it. I tried a few times and the same thing happened at the same point in the film. I have had this disc for a while (over a year) and dont know where I bought it. Do you think there is any chance of getting it replaced by the manufacturer? Is it common for discs to become faulty after a while?