There are two different kinds of live album - the disposable quick cash in or contractual obligation album (which Slayer's un-essential Live Undead firmly falls into), and more rarely there are those live albums that so perfectly capture the essence of the band in question that they become as essential as the bands studio output (such as Iron maiden's Live After Death). Decade of Aggression is definitely in the latter category - for a start the set-list is magnificent, not only picking out all the classics from Slayer's Def American album's but going deep into the back catalogue for such tacks as Hell Awaits, The Antichrist, Die By The Sword and Black Magic. Just the first CD of this double set contains what must be the ultimate Slayer set-list, with openers Hell Awaits and The Antichrist having the immense production denied by them on the studio version, before the band run through the highlights of Reign n Blood, South of Heaven and Seasons in the Abyss. The 2nd disc is probably slightly less compelling, but the fact that the production here is often superior to that on Slayer's studio albums makes this essential. To add to the status of this collection is the fact that this is the end of the 'classic' Slayer line-up, as shortly after this release drummer Dave Lombardo would be sacked. Pretty much as good as a live album gets, the Japanese import also features the bonus live tracks Skeletons of Society and At Dawn They Sleep.