One of the reasons, I think, that Bob Dylan’s Rolling Thunder period is so loved by Dylanphiles is that it’s kind of absurd. This isn’t meant as an insult — but the idea of a traveling gypsy show rumbling around the Northeast is one of the few bits of sustained public whimsy that Dylan’s put forth in his long career. Considering that they fall in between the not-so-fun failing of his marriage and the really-not-so-fun Christian period, the general good-naturedness of the shows have taken on a mythic quality. Among Dylan bootfans, these shows are some of the most prized. So after a quarter of a century, we’ve finally been obliged with an official release, Vol. 5 in the Bootleg Series.