DELETE IT?
Also, is the code file still available in order to NOT have to use the CD every time ya wanna play?
Open your game's config.ini file using wordpad. Look for; "[game]" and in the section under that; "Intro=1". Change it to read "Intro=0". Save the change, close the file and start the game. The intro track should not play now.
You do not say which version of the game you are using- if you install one of the mod packs, you will not need to CD to run the game.
If you prefer to use a stock version of the game, do a search for "No-CD Crack".
Just install one of SAS's mod activators and then you won't need the CD again, and then you will also be able to Install mods!