ISO/IEC 9171-2:1990 Preview
Information technology -- 130 mm optical disk cartridge, write once, for information interchange -- Part 2: Recording format
This standard was last reviewed and confirmed* in 2006.
*Therefore this version remains current
Specifies two formats 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. A prerequisite for conformance with this part of ISO/IEC 9171 is the conformance with its part One.