Picocassette is an audio storage medium introduced by Dictaphone in collaboration with JVC in 1985. The Picocassette was introduced to compete with the Microcassette, introduced by Olympus, and the Mini-Cassette, by Philips. Size It is approximately half the size of the previous Microcassette, and was intended for highly portable dictation devices. With a tape speed of 9 millimeters per second, each cassette could hold up to 60 minutes of dictation, 30 minutes per side. The signal-to-noise ratio was 35 dB. The widest dimension of the picocassette was near 4.2 cm. See also Microcassette Mini-Cassette NT (cassette) References External links Image of a Picocassette (including ruler and Compact Cassette for comparison), at the Cassette Recorder Museum Techmoan: The Picocassette - Smallest Analogue Cassette Tape ever made Audio storage Audiovisual introductions in 1985 Tape recording Products introduced in 1985