I can't see any previous posts about this but sorry if it's already been covered. I've created ISOs for a few of my Blu Ray disks but can't get them to play through Windvd. My HD-DVDs work fine. Also, the physical Blu ray discs work OK just not the ISOs. Blu Ray works fine through PowerDVD but I can't get 5.1 sound through that it only ever outputs 2 channel - even on passthrough!