| 摘要 |
The invention concerns a recording disc comprising a main spiral track (1) and a section of secondary track (2) inserted between two successive turns of the main track. A use zone (3) comprises data (30) concerning the type of the antihacking disc and data (31) concerning the relative positioning of the section (2), which the disc player reaches by going to an address (A) of the main track and by skipping over the track (10). The section is then identified by identification data which it bears and then the disc physical structure is verified for its conformity with that described in the initialising zone. The invention is applicable to provide any optical disc, in particular CD or DVD with antihacking. |
