Patent ID: 7616541

Claim:
A recording apparatus for recording record data onto a write-once-type recording medium comprising: (i) a data area to record therein the record data; and (ii) a plurality of management areas in which a plurality of types of management information for managing the record data and index information for indicating newest management information is recorded a plurality of times, said recording apparatus comprising: a first recording device for recording the record data into the data area; a detecting device for detecting the management area in which newest index information is recorded; a selecting device for only selecting management information which needs to be updated individually, out of the plurality of types of management information; an updating device for updating the management information which is selected by said selecting device and the index information; a judging device for judging whether or not the index information and the management information which are updated by said updating device is recorded into the management area which is detected by said detecting device; and a second recording device for recording the updated index information and all management information indicated by the updated index information, into another management area in which the updated index information and the all management information indicated by the updated index information is recorded, if it is judged by said judging device that the index information and the management information which are updated cannot be recorded.