Recording apparatus, recording method, and disc-shaped record medium

A recording apparatus for use with a disc-shaped record medium having a user data area and a management area, comprising:

• recording means for recording at least one bit map that represents whether or not each data unit for recording/reproducing has been recorded;
• and
• processing means for recording the bit map to the management area of the disc-shaped record medium, and referencing the bit map and adding a predetermined amount of data that contains at least one of servo information and position information to a non-recorded area in the vicinity of recorded data so as to allow a reproducing apparatus that reproduces data from a read-only disc-shaped medium and obtains at least one of the servo information and the position information from a reproduced signal to reproduce data from a rewritable disc-shaped record medium,
• wherein the management area includes a plurality of bit maps and an update counter, each of the bit maps has a value of an update counter that represents the number of update operations of the bit map, and
• the processing means rewriting the plurality of bit maps successively and rewriting the value of the update counter of the bit map rewritten based on the number of update operations.