Collection name: Platform Audio Recordings; Subjects: Speeches & Events: The NT Platforms Department run an eclectic programme of pre-performance events that celebrate all aspects of the arts, offering the chance to learn about the National's work and discover more about theatre in general. The Archive holds audio recordings of these events dating back to the late 1970s; items: 150 Compact Cassette, 773 DAT, 10 MiniDisc, 500 Digital Audio Files, DV tapes. Collection name: Production Audio Recordings; Subjects: Drama & Literature: Audio recordings of early NT productions; items: 69 Open Reel Tape,