http://www.appleinsider.com/articles..._drm_free.html
"While bowing to studio pressure to offer variable pricing on iTunes tracks, Apple has also finally convinced all the big labels to release their music as DRM-free 'iTunes Plus' tracks at the same 99 cents."
"Starting in April 2009, studios will be able to release songs on iTunes at three different prices: 69 cents for back catalog tracks, 99 cents for standard songs, and $1.29 for new or popular releases. Apple has staunchly resisted multiple track prices in the past in order to keep music in iTunes priced simply and consistently. Music labels have just as stubbornly pushed for multiple pricing tiers."