In 1997 Bob Dylan nearly died, and it seems like ever since, he's been out on the road trying to gather as many souls as possible, converting the world one by one with the fervor of a man who's been returned to his path by God himself. For the die-hard, the zealous, the purist, there are "field recordings" of virtually every show the man has done in the past several years … you could commit considerable time and energy sorting through them all, trying to find the best performances, the best setlists, the best sound. But for those of us who value time over money and trust the experts to handle the situation on behalf of everyone concerned, there is Rock of Ages, perhaps the most lovingly assembled and beautifully-packaged bootleg ever made…