Hai thurr,

I'm currently legalising my music library through iTunes Store, and some albums offer much more bang for buck than seperate tracks. I'm about to buy "Until One", from Swedish House Mafia, but I'm unsure if the tracks included are the 100% original tracks, or just cuts from the continuus mixtape (which is included too).
I'm hoping for the first, and if so, is this valid for every mixed album where the tracks are listed seperately?