This standard provides the requirements for the helical-scan recording method and the Digital Data Storage (DDS) recorded format of a 3.81-mm (0.150-in) magnetic tape cartridge to be used for information interchange between information processing systems.

Information interchange between information processing systems requires the use of this standard in conjunction with the unrecorded tape and cartridge requirements provided by American National Standard for Information systems - Unrecorded helical-scan digital computer tape cartridge for information interchange, 3.87-mm (0.150 in), ANSI X3.206.(Footnote 1)

Additionally, information interchange requires, at a minimum, the utilization of a labeling and file structure and an interchange code as agreed upon by the interchange parties.

It is not within the scope of this standard to describe unrecorded tape and cartridge requirements, labeling and file structure requirements, or interchange code requirements.

CAUTION: The user's attention is called to the possibility that compliance with this standard may require the use of an invention covered by patent rights. By publication of this standard, no position is taken with respect to the validity of this claim or of any patent rights in connection therewith. However, the patent holder has filed a statement of willingness to grant a license under these rights on reasonable and nondiscriminatory terms and conditions to applicants desiring to obtain such a license. Details may be obtained from the publisher, No representation or warranty is made or implied that this is the only license that may be required to avoid infringement in the use of this standard

Footnote 1 - This standard is currently under development. Contact the secretariat for more recent information.