| 摘要 |
<p>A disk recording medium for which a highly reliable method for recording additional information is realized. The disk recording medium has a recording/reproducing area on/from which first data can be recorded/reproduced by a writable or write once read many recording method and from which second data recorded by wobbling of grooves can be reproduced. The second data includes address information and additional information. The additional information is encoded by a first error-correction method, the coded additional information and the address information are encoded by a second error-correction method, and the second data is recorded.</p> |
