Side note on this: When I dump the WAV files, right now I get two RealDrums.wav files:
_RealDrums.wav
_{Filename}_RealDrums.wav
Where filename is the name of the SGU file. But actually the WAV file _{Filename}_RealDrums.wav
is the MIX of all the tracks. That would be best called something like _{filename}_RealInstrumentMix.wav or something like that.

Also, I'd like to see the other WAV files prefaced by the filename as well, ie:
_{filename}_B3Organ.WAV