Good ol' Amazon reviews huh?
I was having a peek at the Digital Bits and their upcoming releases tab, and they list this title as coming out tomorrow. My guess is they've corrected the disc and it's on it's way, and it's that disc that Mr. Harris probably recently received in order to get...
From Amazon:
"Seriously it is defective! In the final five minutes of the first Hostel movie when Paxton exits the train the audio goes crazy and it becomes a random mix of sounds that do not mix with the movies itself and no doubt ruins the experience imo."
also from Amazon...