At the 1975 Libertarian Party Convention in New York, I gave a talk on Robert Nozick's Anarchy, State and Utopia. Nozick was in the audience, and we had an interesting exchange. Someone recently asked me if there was any record of the talk. I don't have any, and that was long before the time when everyone in the audience could be expected to have a video camera in his pocket, but it occurred to me that someone might have tape recorded the talk, perhaps the whole convention. If so, I would like to put a copy on my web page.
Does anyone know of such a recording and, if so, where it is?