As of Tuesday, the iTunes store began offering the band's entire back catalog of 10 albums for sale, from their 1983 debut, Kill 'Em All, to 2004's Some Kind of Monster EP. As a bonus, previously unreleased live tracks have been added to the first four albums as iTunes bonuses.
Kill 'Em All features live versions of "The Four Horsemen" and "Whiplash" while 1984's Ride the Lightning adds versions of "For Whom the Bell Tolls" and "Creeping Death."