The band practically invented the genre, but to call Led Zeppelin a heavy metal band is an insult.

The band practically invented the genre, but to call Led Zeppelin a heavy metal band is an insult. The brute force of Zeppelin was unprecedented, spawning countless imitators—ranging from the inspired to the laughably silly—but as this three-CD compilation from two 1972 performances demonstrates, the band created much more than over-the-top blues. True, Zeppelin played the blues like no one before them, as several tracks here attest, among them "Heartbreaker," "Since I've Been Loving You," "Whole Lotta Love," and "Bring It on Home." But the band's sonic, lyrical, and mystical explorations were equally innovative ("Dazed and Confused," here pushed to an epic 25 minutes). Concurrent with this release is DVD, featuring more than five hours of rare concert footage, TV appearances, and interviews.—CW