I got a copy of PowerDVD 7.3 Ultra when I picked up a Blu-ray drive a while back. This has been playing movies without any problems, until recently when I noticed that a new film I bought (Iron Man) was only giving me two channel sound.
Because my receiver is old (no HDMI) I'm running the sound from the PC to the AVR via SPDIF (for DVD DTS/Dolby) and multichannel analog for the high def audio formats.
PowerDVD identifies itself as "PowerDVD BD+HD 2CH", but doesn't appear to have any problems decoding and outputting surround from DVD (SPDIF/analog), or BD movies using LPCM and DTS-HD Master (analog).
However, in the UK, there are now some discs coming out (like Iron Man) whose only English language track is Dolby TrueHD, and it seems to be this format that's causing the problem. I tried Spiderman 3 (which has both LPCM and TrueHD tracks) - the LPCM is fine, but PowerDVD reports the TrueHD track as 2.0.
I'd be happy to upgrade PowerDVD to the latest version, but could someone confirm that version 8 will play TrueHD tracks out to analog in surround?
Also, I've heard a rumour that the latest version(s) of PowerDVD won't play BD ISO images from a virtual drive. I find this very useful (make an ISO using AnyDVD HD) and serve movies without having to mess about with my discs. Anyone know if this is true?