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Data interchange on 90 mm flexible disk cartridges using MFM recording at 7 958 ftprad on 80 tracks on each side - ISO type 301

2nd edition, December 1988

This Ecma Standard specifies the characteristics of 90 mm flexible disk cartridges recorded at 7 958 ftprad using modified frequency modulation recording, on 80 tracks on each side – ISO Type 301.

It specifies the mechanical, physical and magnetic characteristics of the cartridge, so as to provide physical interchangeability between data processing systems.

It also specifies the method of recording, the quality of the recorded signals, the track layout and the track format.

Together with the labelling scheme of Standard ECMA-107, this Standard provides for full data interchange between data processing systems.

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CategoryData interchange and archiving by physical media

SubcategoryFlexible disk cartridges

Technical CommitteeTC19 (this TC is no longer active)

ISO number8860


  • ECMA-100, 1st edition, September 1985Download