Sorry as this could well be a duplication but i honestly don't know how to effectively use the search engine here. My wife is fronting a halloween party and I'm in charge of the music at the outdoor event. There's an appropriate album for sale on iTunes that's taken my fancy. But, I've heard that you cant replicate the music and export to disc, something i'd need to do to play at the venue. Is is possible to back up my purchase from iTunes???