| 摘要 |
An information recording method has blocking an information and adding an error correction code to the information so as to generate an ECC block, adding plural kinds of synchronizing signals SY differently arranged according to a type of an information recording medium D (FIG. 4) or plural kinds of synchronizing signals SY having a signal pattern according to the type of the information recording medium to the generated ECC block at an predetermined interval, and recording a recording signal based on the ECC block in the information recording medium, is provided. Even if the whole information of a ROM medium is illegally copied, since it is detected by the arrangement of the synchronizing signals in the reproduction that the medium is a rewritable medium, countermeasure such as abortion of the reproduction can be made.
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