Def Leppard are giving the deep-dive treatment to their catalogue with this new box set, and fair play to them for still mining the vaults after all these years. Over 40 rare tracks is a proper feast for the committed fan, though we're curious whether the Beatles cover sits comfortably alongside their arena-rock DNA or if it's one of those "well, it exists" moments. For anyone who's stuck with the Leps through thick and thin, this feels like the kind of reissue that justifies keeping those old CDs in the attic.