Writing in today's New York Times, Jon Pareles calls Bob Dylan rock's ultimate example of a contrarian. The occasion for his reflections is the impending release of a Martin Scorcese-directed documentary dealing with Dylan's early musical development, concluding with the 1966 motorcycle accident that triggered his brief hiatus from music. The film is being accompanied by a soundtrack, which in appropriately contrarian fashion, doesn't present all the same versions of songs featured in the film. Both are called,