| 摘要 |
PROBLEM TO BE SOLVED: To overcome the problem wherein the setting of a specific laser is necessary for the bar code reading other than a reading mode of data of the data area of a disk, to read the bar code when the bar code is written in. SOLUTION: The optical disk manufacturing method is provided with a step for forming the data area on a substrate, which includes a pit indicating a readable signal by the irradiation of a light, a step for forming a reflection film on the above data area, and a step for forming a bar code pattern indicating the information to the reflection film on the data area, and in this method, the above bar code pattern is formed on a track of the optical disk, and the pit is formed between the bars to form the bar code patterns. |
