Well, yeah, I like to know how Dolby Digital in games works. What does it mean? I know how EAX works- it simply creates different sound effects according to the surrounding. Okay. But what does Dolby Digital do? I thought Dolby Digital in games is somewhat impossible, because unlike EAX, it can't be created dynamically, but must be readily mixed. However, in games where situations are never the same, you can't mix the sound in advance, it must be created dynamically, according to the situation and environment. But according to Dolby, they seem to have developed a new technique to make Dolby Digital possible in games. Well, what's the story now with Dolby Digital in (newer) games, like Prince of Persia or Army Ops, what are the advantages? When I changed my SB Live! 5.1 Platinum against my new nForce 2 onboard sound, I could only hear that the sound in, for example, Army Ops sounds a bit "smoother" than before. But I had 5.1 sound with my Live! before as well. And of course the whole sound sounds a lot better then before (with my Live!), so I can't really tell what's the difference now. And maybe the answer to my DD question will already answer the following question: when playing games in Dolby Digital (PoP, Army Ops), does it make sense to deactivate EAX?