So I just bought Batman: Arkham City GOTY edition, and just finished installation and attempted to play it. Well, when I hover over the game disc and the PS3 background changes to Batman, the sound loads. Whenever I play a different game, the sound remains correct. Whenever I try to play my Batman game, what ends up happening is that NO sound whatsoever comes. That means before the start menu, during the start menu, and during gameplay.

I've tried resetting my audio/video output settings by holding down the power button until it beeps (after the initial beep of powering on), manually reselecting HDMI. I've also tried messing with the volume in game to no avail.

I've tried searching sound problems for Arkham City, but nothing has come up in search except for a stuttering problem, so I was wondering if anyone else could help out?