maz.588: I subed.
It seems brain damaged to compress the sounds like this. From what I gathered on the net, it saves around 90 MB. Basically nothing, and you are then forced to use ScummVM.
The more I read about the LA games released, the more I'm disappointed.
Beregorn: They are not compressed: Fate of Atlantis, as well as MI2, use theiMuse music engine, an innovative (for the time) engines that allows to change the soundtrack on the fly, so you can have a different soundtrack for any different scene, with "smooth" transitions. Problem is, this engine work only with midi file, so you need a good midi interpreter. Lukily, the ScummVM include a Roland MT-32 emulator (being the roland mt-32 the interpreter that Lucas Arts write their soundtrack for). You just need to find the controller ROM, but google is our friend.
here you can "see" how the game "listen" like with the emulator.
https://www.youtube.com/watch?v=ppyZX1GsM8s You are correct that the music employs the iMuse system, but not the digitized sounds (like voice and some sound effects). Those digitized sounds, not the music, were held in the original MONSTER.SOU file and were subsequently compressed for some reason in this release.