FWIW, Audacity does a great job, and has been an incredibly helpful modding tool... As for simply rearranging the order of songs on a cd, that is as simple as Astro stated - WMP can do all of that. If you dislike WMP, iTunes can also do the job, as can winamp etc... All free!!
Want to play a game of ME3MP?
Qui-Gon_Glenn on the software of which we shall not name.... add me and the enemy shall fall in chunks of crimson salsa