This month's podcast focuses on the earliest sound recordings: the experiments of Édouard-Léon Scott de Martinville and Thomas Edison. Paul Meier's guest is Patrick Feaster, principal of First Sounds.org (along with David Giavannoni) and creator of Phonozoic.net, a website devoted to the history of the phonograph and related media. Film historian and IDEA Executive Editor Cameron Meier joins the conversation.