I've just ordered the "Cinematographer Style" DVD and found it very entertaining. Of course it includes only interviews and no footage that explains what they are talking about. But I think it's a helpful source for a cinematography - beginner who needs a good starting point to get into it.
I've also started reading through "Masters of Light" that includes 15 interviews with some of the greatest cinematographers of all times (including Hall, Storraro, Willis, Williams, Zsigmond etc.).
Both sources are in my opinion not useful to carry around on a filmset while shooting a movie, they are no instruction manuals or "how to shoot a movie?" - guidances but you get a very close look into the world of cinematography and its theoretical and technical aspects