Any ideas what could be causing this? When I record a HD bluray disk from TV3 freeview using a Set-Top BluRay/HDD Recorder unit ($2000 worth!) the disk will not play in my pc. Os XP Pro SP3, Power DVD 7.2 BD Edition. I see the first frame and then PowerDVD freezes up, the whole computer slows down, I have to end process and sometimes even doing this doesnt work, then im forced to do a hard reboot. Yet normal dvds plus recorded dvds and other bluray disks NOT from Set-Top Bluray recorder work fine. Have tried copying Bluray disk to pc and playing from pc hdd, but same problem. my pc is definately upto specifications for bluray.