TJ got it about right. The radio show with Carthy showed Dylan to be a nasty piece of work who would use everything and anybody, including the folk scene and Carthy, to further his career. As far as him soaking up everything 'like blotting paper' (Carthy), it's the first time I have heard a tape recorded described as blotting paper. His manager, Grossman, paid to have the sessions in the Troubadour taped and this was taken back to his hotel and 'analysed' to see what was nickable.
Liam Clancy pointed out that one of Dylan's songs was actually written to the harmony of a taped song as the microphone was nearer to the harmony singer that the lead singer!!