This isn't really an SE4 mod, more of nostalgia for SE3, but it is "data/sound/graphic"...
I went ahead and made a MIDI of the Malfador theme music from SE3... I know, it needs work (the percussion is too loud and sounds like the Klackon battle music from MOO3

) but it's a start... maybe if I can get this sounding good enough we can even convince Aaron to put it into SE5 and/or Starfury???
Malfador Theme.zip (384 bytes, by the time you read this it will be downloaded
)