Dave Mustaine revived Megadeth in the mid-2000s, remastering and reissuing his band's entire Capitol catalog and hitting the concert circuit in earnest. Greatest Hits is part of that revival. It's the second Megadeth best-of, replacing the one from five years prior, Capitol Punishment. Greatest Hits is an improvement, loaded with 17 selections, three more than its predecessor. There's also some fancy packaging and a hyperbolic "Love Live Megadeth" tribute written by Penelope Spheeris, the colorful director of The Decline of Western Civilization, Pt. 2: The Metal Years. It all adds up to a nice package, or more precisely, a sampler of Megadeth, from the band's pioneering thrash metal years to its later growing pains, with an unfortunate de-emphasis on the band's beginnings.