Hi there, I just found this post: https://tango.0pointer.de/pipermail/pulseaudio-discuss/2011-March/009291.html Is this relevant to HDMI passthrough to receivers IE: so the NVIDIA isn't decoding the audio stream, allowing the receiver to get DTS-HD MA, True HD, FLAC etc encoded streams and do the decoding on the receiver?? Because at the moment I only get PCM on my receiver from the NVIDIA, where as in Windows 7 I can use powerdvd which passes through the signal for the receiver to decode, in Ubuntu I have no options to do that. Regards, Peter