This DVD is a documentary film about the buildup, making, release, and crucially music contained on this most revered of albums. With the aid of rare and classic performances, scarce interviews, seldom seen photographs and contributions from those involved in the making of the record plus the review and critique from a panel of Zeppelin experts, this program finally lifts the lid on what many believe to be Led Zeps very finest offering.This DVD is a documentary film about the buildup, making, release, and crucially music contained on this most revered of albums. With the aid of rare and classic performances, scarce interviews, seldom seen photographs and contributions from those involved in the making of the record plus the review and critique from a panel of Zeppelin experts, this program finally lifts the lid on what many believe to be Led Zeps very finest offering.