| 摘要 |
PROBLEM TO BE SOLVED: To increase recording capacity. SOLUTION: This disk is a magneto-optical disk that a data part on which the data becoming a recording unit are recorded, and a header part recorded prior to the data part, and becoming the reference position of the data part are recorded on an information recording surface, and as shown by A of the figure 2, though usually the header part is recorded with a pre-pit beforehand forming a pit, as shown by B of the figure 2, the header part is recorded beforehand with magnetic inductive super resolution. Thus, the recording density of the header part is improved, and the redundancy is reduced.
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