I've owned this "Small Faces" debut album on three previous CD editions: a 1980's West German "London" label CD, a 1996 "Deram" CD(no longer in my collection), a 2006 Decca "40th Anniversary" edition, and now, this 2012 Deluxe Edition". I've done sound quality comparisons between the 3 editions that I've got, playing them through audiophile-grade headphones(Sennheiser HD-650). It's no secret that these are(mostly) grungy, tinny,distorted recordings, even by 1966 standards. They were recorded at an independent studio and(excepting "Sha La La La Lee") on 2-track. As a group whose recordings were(then) licensed to, but not owned by Decca, the group couldn't use Decca's high quality studio.
The 2006 CD edition went too far with loudness and brightened equalization, yielding a harsh sound. The new 2012 edition sounds the best so far, with more clarity than the 1980's "London" CD, but without being harsh or unpleasant. Stlll, you can't make a sonic silk purse from a sow's ear. There's limits to what can be done to improve the sound of this album, which was not well-recorded, even by 1966 standards. Disc One ends with 4 non-L.P. tracks("I've Got Mine","What's a Matter Baby","Grown Your Own" & "Patterns")
There's no previously unreleased songs or takes in the 2012 edition. The only previously unreleased material in this edition are five tracks in "electronically reprocessed"(I.E. Fake) stereo, which many consumers consider to be filler material.
The first time that Universal music released alternate takes from the group's French E.P.'s(on 1996 editions of "Small Faces" & "From The Beginning") they were simply horrific sounding dubs from vintage French vinyl. Full quality sources for most of these tracks were found and included on the 2006 "40th anniversary" edition of the "Small Faces" debut album , and these tracks sound even better on the 2012 2-CD edition. As a bonus, they've found a full quality source for the alternate "Come On Children"(versus the hissy source used on the 2006 "40th Anniversary" edition.
You also get a true stereo "Sha La La La Lee" amongst the Disc Two tracks.
Still, despite the fact that the set doesn't debut any previously unreleased music, this is the edition to own.