scope:

This Standard specifies the characteristics of 130-mm optical disk cartridges (ODC) of the type providing for information to be written, read, and erased many times using the magneto-optical effect.

ANSI X3.212-1992 specifies

- definitions of the essential concepts,

- the environment in which the characteristics shall be tested,

- the environments in which the cartridge shall be operated and stored,

- the mechanical, physical, and dimensional characteristics of the case and of the optical disk,

- the magneto-optical characteristics and the recording characteristics for recording the information and for erasing it many times, so as to provide physical interchangeability between data processing systems.

ANSI X3.212-1992 specifies a format for the physical disposition of the tracks and sectors, the error correction codes, the modulation methods used for recording, and the quality of the recorded signals.

ANSI X3.212-1992 together with a standard for volume and file structure provide for full data interchange between data processing systems.