Well, I don't know much about Soundfonts myself. They are samples that the sound card triggers when a midi song or game etc...asks for it. You can edit the sounds that your card came with to make your own drum sounds etc... and you can record samples yourself or buy samples to make banks that you can load in and make instruments with. You can use Vienna Soundfont studio to access the Soundfont banks in your card and you can export the sounds as wav's and open them in a wav editor. I thought I could create some better sounding drums if I did, but my snare sound ends up being about an octave too high when I export it. Maybe I'll be able to figure out what's going on.