I came upon this post because i had similar problem. My PowerDVD BD 2CH (which is v.7.2 and came with my LiteOn BD drive on a disk labeled something like Cyberlink BD Solution) was working fine until a couple of days ago. Then is stopped playing all blu-ray disks. On some it would freeze right away on others it would play a bit of a preview (with no sound) and then would hang and I would have to kill it. However, DVD movies continued to play just fine.
Well, I found the problem - which might not help you but it might help others. My hint was that there was no sound when playing BDs. Then I remembered that recently, among other tweaks , I disabled SPDIF device in my audio settings, thinking that I don’t need it since I don’t use SPDIF output. Well, that was it. Re-enabling SPDIF fixed PowerDVD BD playback freezing.
So that’s my 5c. Make sure your audio drivers are up-to-date and that SPDIF output is enabled. I guess HDCP requires tight integration of video and audio and any problems with audio portion can lead to hang-ups.
I should mention that I run Vista Ultimate 64bit.
And btw, the OEM PowerDVD is really basic. Mouse doesnâ€™t work on blu-ray menus (you have to use arrow keys); you have to start playback from beginning every time - it doesnâ€™t remember where you stopped on last play; and most of the time you can’t skip previews by activating main menu - really annoying. Andâ€¦ you are forced to use mouse, normal keyboard shortcuts such as space for pause and esc to exit full screen don’t work.
Because of all these annoyances I would upgrade to retail version, but c’mon they are asking $100 for PowerDVD Ultra - which is the only version that plays BD. These days you can get stand-alone BD player for that money.
I wish someone would come up with a good software BD player that’s reasonably priced.