Patent ID: 8917977

Claim:
An information processing device comprising: a data processing unit configured to: generate or update a data file including data for playback, and a management information file including management information of said data file at a time of recording said data to a medium; record said management information of said data file in a first management information file only when said data is compatible with a standard conforming to a predetermined stipulated data recording/playback format; and record said management information of said data file in a second management information file different from said first management information file only when said data is incompatible with said standard conforming to said predetermined stipulated data recording/playback format, wherein said standard is either a Blu-ray Disc (BD) standard or an Advanced Video Codec High Definition (AVCHD) standard, wherein said data processing unit is configured to set a first directory, corresponding to said first management information file, including an index file and a movie object file which apply to only said data compatible with said standard and to set a second directory, corresponding to said second management information file, including an index file and a movie object file which apply to said data incompatible with said standard and said data compatible with said standard.