Just to clarify, these are the discs that I have captured (and yes, this thread is about The Thing, not EFNY!)

I only have the means to capture the PCM Dolby Stereo, not the 5.1 AC-3 - though as others have said, that is probably an identical mix to the one included on the DVD (and perhaps even the HD versions), and unless there's some evidence that it's a 70mm 6-track transfer I'm not particularly interested in messing about with that.

(The remixes have their supporters - apparently they sound quite close to the original - but they're remixes nonetheless and I'm looking for a purer source here.)

The HD-DVD video is demonstrably the best choice for picture, so I'll certainly be syncing to that. As to whether to keep it VC-1 or convert, I guess that's for individuals to choose for themselves but personally I'll do my very best to not re-encode if I can avoid it (though since VC-1 can be a bugger to work with I may have no choice there).

So folks want both versions then? I guess that's my summer taken care of...