In its survey of the videocassette field, this book details the background, current status, problems, and potentials of the various systems designed to record and reproduce films and other audiovisual material through a conventional television set. The systems used by CBS (a miniaturized film format), Avco, Sony, Ampex (all magnetic tape formats), RCA (a system using holograms), Technicolor and MPO Videotronics (super 8 film cartridges), and Teldec (a video-disc system) are described in some detail. An assessment of the potential market and future applications of the medium is presented. For instance, it is felt that the first wave of use, because of system costs, will come from industry and the schools. A videocassette directory provides a thumbnail sketch of the plans of a cross section of the companies, both domestic and foreign, which have announced that they will participate actively in the manufacture, promotion, or utilization of the audiovisual cartridge. Three updated supplements will be made available to the purchasers of this book at no extra cost. (JY)