Thanks for the link. I just ripped the OPM data in a last ditch attempt to access the sound samples. I attempted to get the Vopm working for both the opm files I downloaded, and the ones I ripped myself from the emulator, and the ones from a VGM file I downloaded. I even tried playing them in FL studio and Deflemask. In each of these cases, it seemed like all the ripped samples are silent. I eventually was able to make one of the channels play a sound that seemed somewhat right.
I also used an app called VGM to MID to make some midi files from the game I wanted. I'm not sure how accurate this midi is compared to how the sound designers intended it (it sounds terrible), but the best way to explain it is that the composer (Jesper Kyd, later of Borderlands and Assassin's Creed fame) may have been using some mind-bending sound engineering and trickery. I can't really make sense of it. In spots I expected to find sound effects, there are just notes played really fast in a strange order which emulates the sounds I heard. I'm now wondering if the composer simply used one sample but in so many different ways that it sounded like multiple samples.
It seems like this will be a bigger project than I realized, unless I can find a sound engineer to help