Patent ID: 7133596

Claim:
A recording apparatus for recording, on an optical disk recording medium, one or a plurality of data, data management information for managing N (N is an integer) pieces of the data as a data group and total management information for managing M (M is an integer) pieces of the data group, comprising: means for recording time zone information (TM_ZONE) indicating a time difference between a world standard time and a standard time in a predetermined location on the total management information; area of the optical disk recording medium; and means for recording, on respective data management information, area of the optical disk recording medium, recording time zone information (REC_TM_ZONE) at a time of recording data indicating a time difference between the world standard time and a standard time in a location where the data managed by the data management information have been recorded, first data recording time information indicating a recording time of data first recorded on the data group in accordance with the standard time indicated by the time zone information (TM_ZONE) and second data recording time information indicating a recording time of data last recorded on the data group in accordance with the standard time indicated by the time zone information (TM_ZONE).