In 1975, when Led Zeppelin were prepping what would become their sixth studio album, Physical Graffiti, they decided to make it a double album by including unreleased songs originally recorded for previous albums. But while the regular version of this reissue (CD, vinyl, digital) presents this classic album with amazing sound, most of the new outtakes included on extra disc of the deluxe edition (also available on CD, vinyl, and digitally) don’t live up to this album’s legacy.