These are neat hacks, from what I have found it seems like Quicktime is the weak point as it cannot transcode to Dolby Digtal or DTS so the only way to playback multichannel Quicktime files is with a USB/Firewire to multichannel anologue decoder. But if we can work on a system that can easily create a Quicktime file with a DTS encoded soundtrack that could be genius. Afterall that thx.mov file works great.