@TheSaint7182: Where did you buy your "300" HD-DVD -> Amazon? I´ve got exactly the same problem (Error at 52%), the dealer took the disc back and sent a new one to me. But nothing has changed, i have the same problem with the second disc too. The filter "clbstor" doesnt exist at my PC, so I couldnt fix the problem according to the description in here. The disc runs perfectly under PDVD 7.3 ultra (without AnyDVD) - exept chapter 16 and 17, PDVD freezes everytime. Any ideas? Another possibility for saving time is - you tell me whats happen in these 2 chapters.