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. Specifies the requirements for the 4-track and 9-track formats. The two formats shall not exist on the same cartridge. Refers solely to recording on the 0.250-inch (6.30-mm) magnetic tape cartridge and complements Information systems - Unrecorded magnetic tape cartridge for information interchange, 0.250 inch (6.30 mm), 6400-10 000 ftpi (252-394 ftpmm), INCITS 127-1987.