According to a post at the excellent retro-music blog Slicing Up Eyeballs, more details have emerged about the deluxe version of Nirvana's seminal 1991 album Nevermind, which is due September 27. Along with a 90-page book, the extensive bonus material will include a fully remastered version of the album and its b-sides, and audio/video of the band's Halloween 1991 show from Seattle. If that wasn't cool enough, Slicing Up Eyeballs notes the expanded Nevermind will also have:

    * The first full release of the pre-Nevermind demos, recorded at producer Butch Vig’s Smart Studios in Wisconsin

    * “Boombox recordings” of early band rehearsals, which include early versions of “Smells Like Teen Spirit,” “Come As You Are,” “On a Plain” and more

    * The Devonshire Mixes, the full album as produced and mixed by Butch Vig, as opposed to the more polished, commercially released version that was produced  by Vig and  mixed by Andy Wallace

    * A pair of previously unreleased BBC recordings

Check out more details here!