There are Dolby Digital 5.1, DTS or straight forward stereo audio tracks from which to choose, all in Korean - I bypassed the stereo side of things and concentrated on the Dolby Digital and DTS flavours. I certainly preferred the DTS offering, which is more “weighty” and authoritive than its Dolby counterpart. For example, at the beginning of the movie we are taken to Ryu's factory workplace where we are treated to some beefy sub woofer moments. The DTS track is undoubtedly louder, but is also more refined with a tighter, stronger lower end. The extra bass also seems to add a little weight to the vocal side of things, even if I couldn't understand a word that was being said! Having said that there are large chunks of this movie when audio wise nothing of note really takes place... then suddenly the crunch of metal baseball bat against human skull or some similarly unpleasant sound effect reminds you that your amp is still engaged in DTS mode.
Not up to reference quality, then but more than able to hold its own.