This Collector's Edition Box Set of 2 CDs/DVD/4 LPs/Cassette includes 2 versions of the album: the remastered version of the original album, plus an accompanying remixed version done by the band's long-time producer, Brendan O'Brien. The DVD features the band's previously unreleased 1992 MTV Unplugged performance including a never before seen bonus performance with 5.1 surround sound audio remix. LPs #1 & 2 include the original album remastered for vinyl plus a version remixed by O'Brien. LPs 3 & 4 include material from Drop in the Park - live at Magnuson Park in Seattle on Sept. 20, 1992. The cassette is a replica of the original "Momma-Son" Pearl Jam demo cassette. Also included is an Eddie Vedder-style notebooks with personal notes, images, and mementos of Vedder & Jeff Ament, more.