Patent ID: 8108310

Claim:
A recording apparatus for generating duplicate content data in an information storage medium by copying content data, the recording apparatus comprising: first storage means for storing an album including a plurality of content data; check-in means for checking in, among duplicate content data recorded to said information storage medium, said duplicate content data enabled for check-in into said first storage means; check-out means for checking out, among said plurality of content data included in said album, said content data enabled for check-out into said information storage medium after said check-in means ends its checking in; and second storage means, wherein said check-in means comprises: identification means for identifying, among said duplicate content data recorded to said information storage medium, said duplicate content data checked out from said recording apparatus as said duplicate content data enabled for check-in; deletion means for deleting said duplicate content data identified by said identification means from said information storage medium; and incrementing means for incrementing, by one, a check-out permission count included in attribute information stored in said second storage means in correspondence with said content data which is an original version of said duplicate content data deleted by said deletion means.