My Sony DVD player has started to freeze up on every DVD I play during the last week. Normally I would turn it off for awhile and then it works again, but this last time a newly released DVD froze up and I got a C13 "disc is dirty" error. I get the same error even with different brand new DVDs and even when the disc tray is empty. Turning it off for awhile doesn't work this time. Has my DVD player crapped out for good? I have gone through two Sony DVD Players in the last 4 years. Is this normal? Do DVD players wear out fast with a lot of use or am I getting inferior or defective players?