Arriving in stores on October 23 via Interscope Records, the Guitar Hero III: Legends of Rock Companion Pack features a number of songs from the game, including AFI's "Miss Murder", Queens of the Stone Age's "3's and 7's", Smashing Pumpkins' "Cherub Rock", Living Colour's "Cult of Personality", Rise Against's "Prayer of the Refugee," and Steve Ouimette's cover of "Devil Went Down To Georgia."

By redeeming the included code at Interscope's website, soundtrack buyers will be provided with an Xbox Live download code that allows them to acquire AFI's "Carcinogen Crush," Flyleaf's "Tina," and Yeah Yeah Yeahs guitarist Nick Zinner's remix of Marilyn Manson's "Putting Holes in Happiness" and play the songs in the Neversoft-developed Xbox 360 game.

Though the PlayStation 3 also supports downloadable content through its online PlayStation Store, it appears the tracks will not be available on that platform at this time. Neversoft studio director Scott Pease recently indicated to Shacknews that downloadable content for Guitar Hero III on PS3 may not be as timely as Xbox Live Marketplace offerings.

Following the release of Harmonix's Guitar Hero II on Xbox 360, Activision provided several packs, bundling three songs each, for 500 Microsoft Points ($6.25) a piece. As the first batch of content merely consisted of tracks from the original Guitar Hero, many labeled the pricing as exorbitant, noting that with the price structure, it would cost more than the whole of the first game to re-purchase all of the old songs. However, the publisher saw great success at that price point, selling more than half a million downloads, and later packs began featuring songs new to the franchise, with the latest batch being sold individually for 200 Microsoft Points ($2.50) a pop.

With the $6.25 price point drawing outrage, it remains to be seen how fans will react to purchasing what Amazon lists as a $13.98 CD for three more tracks.

Guitar Hero III: Legends of Rock hits retail outlets on Sunday, October 28.