Clocking in at nearly five and a half hours, this DVD has been created from the few performances which were ever filmed during the band's lifetime: London's Royal Albert Hall in 1970, London's Earl's Court in 1975, and at England's Knebworth Festival in 1979, just one year before the death of drummer John Bonham. Visually and sonically stunning, this DVD has been painstakingly restored, remixed and remastered in Dolby Digital 5.1 Surround, DTS, and PCM 2-Channel Stereo under the supervision of Jimmy Page.