With all these new games coming out I'm seeing a lot of different possible hardware audio modes like Miles 2D, DirectSound Software, DirectSound Hardware, A3D, A3D 2.0, EAX, and EAX 3.0. The one games I've noticed has lots of these is GTA3. My question is, what is the difference between these. What I'm mainly instrested in is the effect on audio quality and speaker position this has. All comments welcome (like always). Thanks in advance.