[madengr]

Yes I have the audio. No, it is no substitute for the book. The audio is of the lectures. The books are based on the lectures. It's just nice to have the audio to go along so you can hear his personality.

[Shizka]

Yeah I could see how that would be beneficial. And I guess that it could work for repetition as well. Where did you get the audio?

[madengr]

Well, the first rule of * is you do not talk about *.