Sony Corporation of America. Application Bulletin. Burroughs Chooses Sony U-Matic for Instant "Refresher" Course. This article in conjunction with B & W photographs explores an innovative approach to serving customers by increasing salesmen's general knowledge of complex technical systems and applying it to the specific needs of potential users. More specifically, the article expounds on How U-Matic Videocassettes Serve Salesmen, Cassette Programming to be Expanded, how Cassettes Feature Simplicity and Low Maintenance, and a Training Medium of the Future.