Patent ID: 7675830

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 can be recorded a plurality of times, said recording apparatus comprising: a first recording device for recording the record data into the data area; an updating device for updating the index information and at least one of the plurality of types of management information; a detecting device for detecting whether or not the updated index information is to be in a condition such as indicating management information recorded in a different management area; a second recording device for recording the index information and the at least one of the plurality of types of management information which are updated, into an in-use management area, if the updated index information is not to be in the condition such as indicating management information recorded in a different management area; and a third recording device for recording a management information block including a plurality of types of management information constructed from newest management information and the index information, into an un-used management area, if the updated index information is to be in the condition such as indicating management information recorded in a different management area.