Patent ID: 8223599
Filing Date: 2012-07-17
Classification: G11B

Abstract:
1. An information recording/reproducing apparatus for recording information on a recording medium and reproducing information from the recording medium, the apparatus comprising: a recoding unit for recording information on the recording medium; a reproduction unit for reproducing information from the recording medium; and a control unit for controlling each unit in the information recording/reproduction apparatus, the control unit controlling the recording unit to: record user data on the recording medium; record management information for the user data on the recording medium; record UDF (Universal Disk Format) data on the recording medium; record UDF mirror information which is a copy of the UDF data in an area of a user data area of the recording medium; and record metadata mirror information which is a copy of the management information in an area of the user data area, which is next to the area where the UDF mirror information is recorded, wherein: when reproduction is performed, the metadata mirror information is reproduced from the recording medium before the management information, and the UDF mirror information includes information for an area where the metadata mirror information is recorded.