Audio and video recordings (mostly in French) of the “The Tarde/Durkheim Debate” with Bruno Karsenti as Emile Durkheim, Bruno Latour as Gabriel Tarde, and Simon Schaffer as the Dean are now available from the CRASSH website. The English translation [PDF] is available from Bruno Latour’s website. Photos of the event can be found on the Tarde/Durkheim: Trajectories of the Social conference website.
And here are a couple of videos from YouTube: