| 摘要 |
<p>A method for manufacturing optical disk media (11) of a high-to-low reflection type and a low-to-high reflection type sets both the reflectance of an unrecorded area (23) of the optical disk medium (11) of the high-to-low reflection type and the reflectance of a recorded pit (15) of the optical disk medium (11) of the low-to-high reflection type within a specified reflectance range. An optical disk drive (100) can reproduce data from both the optical disk media (11) without a change of setting for a signal processing system.</p> |
