FLOSS Weekly is a free and libre open source software focused podcast presented by Chris DiBona and Randal Schwartz. Most episodes feature the primary developer or developers of a particular open source software project. The show is an open discussion, with Laporte and Schwartz asking questions about the nature of the project. Typically, the interviewers will ask the guests about the history of the project, and its development model (such as which language it is written in, which revision control system is used, and what development environment the author uses). It's a great show, I recommend it.