Being the record manner which records the data where multiplex record manner of the multilayer record die disk, it designates 1 formation of the multilayer record die disk which includes the regeneration mannered null

摘要

PROBLEM TO BE SOLVED: To provide a multilayer disk and a recording method such that AV data input in real time is subjected to multiple recording.;SOLUTION: The present invention relates to a recording method of dividing data input to a multilayer recording disk in real time by a predetermined amount into recording units, and recording the data input from outside to a main recording layer and to a different position of a backup layer shifted by a predetermined amount from the main recording layer, the shift amount being determined so as to satisfy "a time for which the data to be divided is input from outsidea time for which the divided data is recorded at an innermost periphery of the main recording layer+a time of access from the innermost periphery to the different position of the backup layer+a time for which the divided data is recorded to the backup layer+a time of access from a recording end position of the backup layer to a recording end position of the main recording layer".;COPYRIGHT: (C)2012,JPO&INPIT