Punters obsessed with British hard rock act Deep Purple need be wary of their volume in Sony’s Flashback series. This is not Purple at their commercial and most powerful heights -- they were recording for Warner Bros. and EMI then. Instead, this is a live show from the 21st century that features all of the band’s hits, save for “Hush,” in a concert setting. Ian Gillan still sounds great as a frontman; Roger Glover and Ian Paice still have their chops as well. Former Dixie Dregs guitarist Steve Morse handles the axe hero chores, but sounds more like Ritchie Blackmore than he does himself -- then again, maybe that’s a good thing. The set contains 20 tracks spread over two discs, and the sound quality is more than acceptable. There is something to be said for truth in advertising, however.