ISO/IEC 10777 specifies the physical and magnetic characteristics of such cartridges. It also specifies the quality of the recorded signal, the format, and the recording method, thereby allowing data interchange by means of such magnetic tape cartridges.
ISO/IEC 10777 on helical scan recording of DDS format is useful for:
The helical scan is a magnetic tape-recording method for high-frequency signals. It's found in videotape recorders, video cassette recorders, digital audio tape recorders, and some computer tape drives.
ISO/IEC 10777 specifies the characteristics of a 3,81 mm wide magnetic tape cartridge to enable the interchangeability of such cartridges. The format used is known as Digital Data Storage (DDS). ISO/IEC 10777 general principle of the measuring equipment and measuring method to be applied when measuring the light transmittance of tape. ISO/IEC 10777 refers to the ambient conditions of the air immediately surrounding the cartridge.
Overall, ISO/IEC 10777 helps for measuring the light transmittance of the prisms of helical scan recording of DDS format.