Patent ID: 7903516
Filing Date: 2011-03-08
Classification: G11B

Abstract:
1. An information recording medium from which management information recorded on the information recording medium and representing a recording state of the information recording medium are reproduced by a reproduction method, wherein; the information recording medium includes a management information area and a data area, the management information area includes first management information representing a recording state of the information recording medium when user data is recorded in the information recording medium, and a plurality of areas distributed in the data area includes second management information representing a recording state of the information recording medium regarding the user data, where the second management information has a duplicate of the first management information, the reproduction method comprising the steps of: (a) reproducing the first management information; (b) specifying one of the plurality of areas based on the reproduced first management information; and (c) reproducing the second management information recorded in the plurality of areas sequentially from the specified area toward rearward in the data areas.