Question about PS3 Audio

Hi,

I am wondering whether some of you PS3 owners can help me - now I know the PS3 can output the new advanced audio codecs (Dolby True HD and DTS Master Audio) through HDMI when playing a Blyray movie (if the movie disc has those encoded on it), but what I don't know is whether the games themselves use these new audio formats.

I haven't got a PS3 (yet) and I was hoping if some of you can check the back of the game boxes (I am particularly interested in Heavenly Sword, COD 4 and Assassin's Creed) and see if they support those formats or just the standard Dolby/DTS 5.1. Thanks in advance