Stop Copy

Stop Copy is a very early copy protection system that was used on videotapes from 1978-1983. This copy protection system resulted in tapes from this date range sometimes developing vertical-roll issues when playing on modern videotape players and modern television sets.

List of customers

 * 20th Century-Fox Video/Magnetic Video Corporation
 * Allied Artists Video
 * Fotomat Video
 * MCA Videocassette, Inc.
 * Media Home Entertainment
 * MGM/CBS Home Video/MGM/UA Home Video
 * Paramount Home Video
 * Time-Life Video
 * VidAmerica
 * Walt Disney Home Video
 * WCI Home Video/Warner Home Video