Here's what I keep getting when I try to extract the RARs for the 5.1 version (there are only meant to be two parts, yes?) with UnRarX on Mac OS X:

Extracting from /Users/****/Desktop/hairy_hen_70mm_5.1upmix_b_448kbps.part1.rar

Extracting /Users/****/Desktop/hairy_hen_70mm_5.1upmix_b_448kbps.ac3
hairy_hen_70mm_5.1upmix_b_448kbps.ac3 - CRC failed
Unexpected end of archive

Extracting from /Users/****/Desktop/hairy_hen_70mm_5.1upmix_b_448kbps.part2.rar

Unexpected end of archive
Total errors: 3

I've tried redownloading both parts and just get the same thing. Any help would be appreciated!