Interesting about the Japanese track...ugh. As for versions, I'll take what I can get: Laser and DVD being preferred in case I have to use the segment for something other than reference (I'm still holding out hope I'll just be able to stitch it all together from the Blu Ray audio so I don't have to do any level matching or anything, but you never know).
Anyway, ten seconds of lossless or lossy from any digital source would be grand, as long as it spans the cut as I described above. I would like a better audio reference than YouTube ;)