"iMacGuffin: Portable Infotech and Suspense Cinema." (Part 2: "Audiotape.") The term "MacGuffin" describes a spy film's motivating object. Spies are usually seeking information, and the onscreen MacGuffins that contain vital data have changed with the times, from microfilm to tape to removable PC media. Part 2 of a four-part series by Jefferson Robbins, produced for FilmFreakCentral.net. This is a work of education and criticism; no challenge to copyrights is implied. Full credits appear at the end of Part 4.