Pioneering British rock act Led Zeppelin [ tickets ], which disbanded more than 20 years ago, returns to the spotlight this spring when Atlantic Records issues previously unreleased live audio and video compilations.

On May 27, Atlantic simultaneously releases a two-disc video titled "Led Zeppelin DVD" and a three-disc audio set titled "How the West Was Won." The video collection features entirely different material than the audio set, according to Atlantic.

"Led Zeppelin DVD" clocks in at almost five-and-a-half hours, and features material culled from "just a handful of performances which were ever filmed during the band's extraordinary lifetime," according to a press release. In addition to live performances spanning the band's career, the set also features promotional clips, television interviews, behind-the-scenes footage and fan-shot "bootleg" footage.

Zeppelin guitarist Jimmy Page explained why official video footage of the group is so scarce.

"We were never really part of the pop scene," Page said in a statement. "It was never what led Zeppelin was supposed to be about. Our thing was playing live. In that sense, Zeppelin was very much an underground band. The fact that it became as successful as it did was something that was almost out of our control. We actually shunned commercialism, which is why so little official footage of the band has ever been seen before."

The material featured on the three-disc "How the West Was Won" set was culled from the band's June 25, 1972 concert at the Los Angeles Forum and June 27, 1972 performance at the Long Beach Arena. The tracks were "melded together and sequenced to replicate a single concert from beginning to end," according to Atlantic. Highlights include a 25-plus minute version of "Dazed and Confused," and a 23-minute medley anchored around the hit "Whole Lotta Love."

Led Zeppelin's members--Page, frontman Robert Plant, bassist/keyboardist John Paul Jones and drummer John Bonham--joined forces in the summer of 1968. The group released eight studio albums between 1969 and 1979, and has sold more than 200 million albums worldwide.

Following Bonham's alcohol-related death in 1980, the group's surviving members disbanded.