I have a 13" MBP with 4 gigs of ram and the OEM 500 gig drive, and have been experiencing sporadic freezing when watching videos. At first this seemed to only happen when using Front Row. When I used the google, it told me to try disabling the "put hard drive to sleep" option. I did so and the next movie I watched played with no interruptions, so I thought all was well. Unfortunately tonight I rented a movie off the iTunes movie store and it froze 5 times. Each time it comes back after 5 seconds or so, slightly skipped forward. If I rewind it, it plays through that scene fine. This is driving me batty, and I was wondering if anyone else is experiencing the same thing. Cheers.