This is a custom soundtrack file for Star Trek: Armada 2. I suppose it would work for anything really, but that's what I made it for. Specifically, this is in-game background music for the Borg race. It is comprised of several original pieces by Jerry Goldsmith from various Star Trek works. Please see the further description for installation instructions.
For Armada 2, place the file in the "sounds/music" folder within your game directory. You'll also need to alter your "borg.odf" file to enable the music in-game. The file can be found in "odf/other" within your game directory, and it can be edited using Notepad. Find the following section:
// Music play list.
singlePlayerMusic = "mbor300.wav"
multiPlayerMusic = "mbormp300.wav"
Change the "mbor300.wav" and/or "mbormp300.wav" file names to "borg.wav" to enable the music in-game. This will not alter your compatability in anyway, and it can be easily reversed by altering the "borg.odf" file back to it's original state.