The problem is that the DVD defaults to the DTS Digital 5.1 track. Unless you're set up for this, you won't hear a thing. There is an easy solution, however, so don't fret. Simply go to the Audio Options (or "Set Up", I'm not sure what it's called offhand) on the main menu. This will allow you to set the audio to the other channel (Dolby 2.0 maybe? I forget). The other option is to simply press your "audio" button on your DVD remote. You should easily be able to switch to the other audio track.