It really bugged me, having to use Cineplayer codecs for the audio on HD-DVD, their Sonic HD splitter just didn't work properly and got in the way of smooth playback. I wanted to use Haali as much as possible. Zoomplayer + Haali + FFDShow Just to be greedy, I was playing HD-DVD in one window and Blu-Ray in the second window (OK so it maxed out my CPU) Just drag the .EVO or .m2ts into the Zoomplayer window If it doesn't work, right click in zoomplayer, look at the filter list, uninstall the unwanted filter that is causing the problem If you want to use Haali video renderer (rather than default), right click in zoomplayer, advanced mode, options, video, custom,select custom renderer, Haali Video Renderer File playback is now totally free of charge