Disc one of this two-CD set is a perfect Emperor primer, collating the highlights from the band's four full-lengths, including a scorching live version of "Thus Spake the Nightspirit." The second disc offers lesser-known tracks, and will surely get black metal diehards drooling. Included are covers of Mayhem's "Funeral Fog" and Darkthrone's "Cromlech," as well as tracks from the band's first demo, Wrath of the Tyrant. All in all, this set is either the ideal introduction to a massively influential black metal band or a masterful consolidation of its best moments, plus a raft of rare treats. Consumer convenience and devastating metal power: Satan himself couldn't have done better.