Patent ID: 7688697

Claim:
A high-density recording medium including one or more recording layers, the recording medium comprising: a lead-in area including disc information required for recording or reproducing data on or from the recording medium; and a burst cutting area located at an inner area other than the lead-in area, the burst cutting area including a plurality of data units; wherein the disc information is included in the plurality of data units and the disc information includes medium type information that identifies a type of recording layer in the recording medium, each said data unit includes data of 4 rows and parity of 4 consecutive rows, each said data row has a sync field of 1 byte and an information field of 4 bytes, and each said parity row has a sync field of 1 byte and a parity field of 4 bytes, and the information field includes the medium type information indicating at least one of the following types: read-only, recordable, and rewritable.