Patent ID: 7170839
Filing Date: 2007-01-30
Classification: G11B

Abstract:
1. A recording method for recording medium identification information for optically distinguishing a medium on an optical recording medium provided with a main information area capable of recording an information signal and a subsidiary information area for recording subsidiary information that is different from the information signal, which are divided in a plane direction of a substrate, wherein an information layer for recording the information signal in the main information area is provided also in the subsidiary information area, the recording method comprising the steps of: emitting a light beam to form a light spot in the information layer of the subsidiary information area, modulating the medium identification information using a PE-RZ method; and recording the medium identification information in the information layer of the subsidiary information area by using the emitted light beam; wherein a code of the medium identification information is reversed in accordance with a reverse code conversion rule based on a type of the optical recording medium.