Regarding my previous post about the sound being out of sync on the NTSC version, it appears the culprit is indeed by XBOX and/or TV. I properly burned the disc instead of letting XBMC unpack the rars, and still had the same problem as before. I then tried the disc in another player hooked up to another TV, and the sync issues disappeared. Long story short: it's me, not the disc.

I still find it odd that it happens only from around the 53 to 58 minute range. I looked again and the audio is actually ahead of the picture, not behind as I previously stated. I tried the 'no cache' option in XBMC and that helped a bit, but didn't eliminate the problem. Guess it's the XMBC forum for me.