OPTICAL INFORMATION RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To provide an optical information recording medium in which a bar-code is formed at a set position precisely where management information is recorded as a bar-code inside a user information area and a light absorption layer by pigment materials for absorbing a laser beam at least is formed on a substrate.

SOLUTION: The bar-code is formed in a mirror part and a BCA (Burst Cutting Area) area having a groove of track pitches where a track pitch between mirror parts is narrower than a track pitch in a user information area. Thus, the optical information recording medium forms the bar-code at a target position with higher precision than position precision of a BCA writer.

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