MULTI-LAYERED INFORMATION RECORDING MEDIUM, REPRODUCTION APPARATUS, RECORDING APPARATUS, REPRODUCTION METHOD, AND RECORDING METHOD

摘要

A multi-layered information recording medium comprising a plurality of recording layers, a user data area for recording user data, provided in at least two of the plurality of recording layers, and a defect list storing area for storing a defect list. When at least one defective area is detected in the user data area, the defect list is used to manage the at least one defective area.