Emperor: Battle For Dune game music is excellent! Especially Harkonnen's and Atreides' scores.

I managed to rip all three sides music from the CD into MP3. Each side in on one CD and each side has about 12 tracks. So for Harkonnen, Atreides and Ordos, we have a total of 36 tracks. Plus about 6 tracks for the menus and loading.

For a brief run down:
Harkonnen music is more towards rock/metal written by David Arkenstone.

Atreides music is more towards orchestral written by Frank Klepacki ( the music guru of Westwood studios).

Ordos music is more towards techno wrritten by Jarrid Mendelson.

But I absolutely love Harkonnen's music.

For those who have the games and interested to rip the music out, use this: http://d3online.dune3.com/Editing/splitbag.z
Just run the exe file in a command prompt. Extract the music.bag from each house CDs. ALSO, do not forget to extract another music.bag file from your game directory in your HDD after installing the game. It has the remaining tracks for each house. All tracks were ripped into MP3.

Have fun!!