The new version is saved on my computer as six individual mono files, so if I uploaded them directly, the end user would have to combine them on their own in some form. Given that a DTS-HD MA encode would probably be most beneficial for HD formats, I'm leaning towards doing it this way rather than posting the source files directly. I'll have to investigate the possibilities.
The 448 kbps AC3 should be posted later today, I think.