| 摘要 |
<p>A method for recording information on a BCA which cannot be easily copied is provided so as to prevent pirated copies from being made. The BCA recording device for optical discs records, on the BCA on an optical disc, identifying information unique to the optical disc. The BCA recording device is provided with: a BCA data generating section which generates BCA mark signals and BCA code signals which indicate the identifying information; a BCA mark generating section which, based on the BCA mark signals, generates a BCA mark by recording a mark on the recording film on the BCA on the optical disc and partially changing the reflectance of the recording film; and a BCA code generating section which, based on the BCA code signals, generates a BCA code by partially removing the recording film on the BCA.</p> |
