Total Annihilation allows you to play music from the game CD-ROM or any other audio CD. To do this you must have the game CD in the drive until the mission is loaded. Once loaded, eject the game CD-ROM and insert the music CD. It will automatically start playing.
You may cutomize the game to play selected CD music tracks depending on the action during gameplay by using the music options menu. To customize the music first select a track then using the options button above, associate an event to the track. Step through each track of your CD associating an event with each.