| 摘要 |
<p>At the boundary between the program area and the recording area, buffering areas where no valid data exists are respectively provided in the program area and the recording area. These respective buffering areas are caused to be access inhibit area, and neither recording or reproduction is carried out in these areas. For this reason, oscillation of the tracking servo which is apt to take place when light spot is passed through the boundary between the program area and the recording area is suppressed to realize tracking servo stable at all times. Thus, temporary missing of information signals is prevented. <IMAGE></p> |
