This Ecma Standard specifies the physical and magnetic characteristics of a 3,81 mm wide magnetic tape cartridge to enable interchangeability 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.
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ECMA-139
3,81 mm wide magnetic tape cartridge for information interchange - Helical scan recording - DDS format
1st edition, June 1990
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