With a four-disc release of a previously released single-disc album, there's bound to be some surprising new material.

That seems to be the case with the reissues of Nirvana's "Nevermind." The seminal rock release is getting a Deluxe and Super Deluxe makeover; the former, a double-disc, will have a CD of Smart Studio Sessions, The Boombox Rehearsals and BBC Sessions recordings of songs from the set, in addition to the remastered original album.

The Super Deluxe features those two, plus two more CDs containing previously unreleased editions of the Nirvana "Nevermind" story: The Devonshire Mixes and concert mix Live At The Paramount Theatre, recorded  at their 1991 Halloween concert in Seattle. The 4-CD 1-DVD Limited Edition also boasts a remix effort of the effort from none other than legendary rock producer Butch Vig, instead of the final mix from Andy Wallace. The DVD contains the Halloween show.

The remastering effort is all part of the 20th anniversary of the album's release. As previously reported, “Nevermind” reached No. 1 on the Billboard 200 in its day and, at its height, was selling around 300,000 copies per week. It has since moved 30 million copies worldwide.

'Nevermind' – Deluxe Edition

CD One

Original Album
'Smells Like Teen Spirit'
'In Bloom'
'Come As You Are’
'Breed'
'Lithium'
'Polly'
'Territorial Pissings'
'Drain You'
'Lounge Act'
'Stay Away'
'On A Plain'
'Something In The Way'

The B-Sides
'Even In His Youth'
'Aneurysm'
'Curmudgeon'
'D-7' live At The BBC
'Been A Son' live
'School' live
'Drain You' live
'Sliver' live
'Polly' live

CD Two

The Smart Studio Sessions
'In Bloom' previously unreleased
'Immodium' (Breed) previously unreleased
'Lithium' previously unreleased
'Polly Previously' unreleased mix
'Pay To Play'
'Here She Comes Now'
'Dive' previously unreleased
'Sappy' previously unreleased

The Boombox Rehearsals
'Smells Like Teen Spirit'
'Verse Chorus Verse' previously unreleased
'Territorial Pissings' previously unreleased
'Lounge Act' previously unreleased
'Come As You Are'
'Old Age' previously unreleased
'Something In The Way' previously unreleased
'On A Plain' previously unreleased

BBC Sessions
'Drain You' previously unreleased
'Something In The Way' previously unreleased

Super Deluxe Edition
CDs One And Two as above

CD Three

The Devonshire Mixes
'Smells Like Teen Spirit'
'In Bloom'
'Come As You Are'
'Breed'
'Lithium'
'Territorial Pissings'
'Drain You'
'Lounge Act'
'Stay Away'
'On A Plain'
'Something In The Way'

CD Four

Live At The Paramount Theatre
'Jesus Doesn’t Want Me For A Sunbeam'
'Aneurysm'
'Drain You'
'School'
'Floyd The Barber'
'Smells Like Teen Spirit'
'About A Girl'
'Polly'
'Breed'
'Sliver'
'Love Buzz'
'Lithium'
'Been A Son'
'Negative Creep'
'On A Plain'
'Blew'
'Rape Me'
'Territorial Pissings'
'Endless, Nameless'

DVD

Live At The Paramount Theatre
'Jesus Doesn’t Want Me For A Sunbeam'
'Aneurysm'
'Drain You'
'School'
'Floyd The Barber'
'Smells Like Teen Spirit'
'About A Girl'
'Polly'
'Breed'
'Sliver'
'Love Buzz'
'Lithium'
'Been A Son'
'Negative Creep'
'On A Plain'
'Blew'
'Rape Me'
'Territorial Pissings'
'Endless, Nameless'

Music Videos
'Smells Like Teen Spirit'
'Come As You Are Music'
'Lithium'
'In Bloom'