Patent ID: 8077561

Claim:
A recording medium including at least three recording layers, each of the recording layers including an inner area, a data area, and an outer area, the medium comprising: the inner area of each recording layer including at least one of a test area and a temporary disc management area, all test areas in the inner area of each recording layer being located at a different position with respect to an incident beam; and the inner area of the each recording layer including a first INFO zone and a second INFO zone, and all second INFO zones being located at the same position with respect to the incident beam, wherein the at least one temporary disc management area is configured to be used until the recording medium is to be finalized, the inner area of N-th recording layer further includes a PIC area or a buffer area, and the PIC area or the buffer area in the inner area of N-th recording layer is located at a same position partially or entirely, respectively, as the test area in the inner area of N+1-th recording layer with respect to the incident beam, and the temporary disc management area in the inner area of N+2-th recording layer is located at a same position as the test area in the inner area of N+1-th recording layer with respect to the incident beam.