In 2011, Townshend and longtime Who engineer Bob Pridden remixed the album, resulting in a deluxe five-disc box set. Unlike earlier reissues, this set contains two discs of demos, including some songs that were dropped from the final running order of the album, and a selection of songs in 5.1 surround sound. The box set came with a 100-page book including an essay by Townshend about the album sessions, with photos. At the same time, the standard two-CD version was re-released with a selection of the demos as bonus content; Some Disc Two tracks were moved to Disc One to accommodate space for these demos. In 2014, the album was released on Blu-ray Audio featuring a brand-new remix of the entire album by Townshend and Pridden in 5.1 surround sound as well the 2011 Deluxe Edition stereo remix and the original 1973 stereo LP mix.