Provides a format and recording standard for an 8000-bpi (315-bpmm) streaming 0.250-inch (6.3-mm) wide, 4- and 9-track, magnetic tape in a cartridge to be used for information interchange between information processing systems, communication systems, and associated equipment utilizing a standard code for information interchange, as agreed upon by the interchange parties. This standard specifies the requirements for the 4-track and 9-track formats. The two formats shall not exist on the same cartridge. This standard refers solely to recording on the 0.250-inch (6.30-mm) magnetic tape cartridge and complements American National Standard for Information systems ? Unrecorded magnetic tape cartridge for information interchange, 0.250 inch (6.30 mm), 6400?10 000 ftpi (252?394 ftpmm), ANSI X3.127-1987.