As I about to record some music from my most lovingly LucasArts adventures I have just downloaded some recorded mp3 from the following link:
http://soundtracks.mixnmojo.com/(I refer to the Day of the Tentacle an Samnmax tracks)
I think the recorded tracks have great instruments but a bad balance. It sounds just loud. Looks like they were recorded with a soundfont or some VST instruments. When I remind myself of the midi tracks and how they sounded on my old SCD-15 and compare it with the recorded tracks they have not much in common.
I think people who have never hear the midis before may think that the files sound as they were intended to.
When I compare e.g. the Tentacle Disco track with my recordings, I prefer my track recorded with the SD90, because it sounds much "warmer".