Patent ID: 8085317

Claim:
An information process apparatus that manages data recorded on a record medium, the data being composed of a header and a body, the information process apparatus comprising: reproduction information obtainment means for obtaining reproduction information necessary to reproduce the data when the body is recorded; data generation means for generating the header according to the reproduction information obtained by the reproduction information obtainment means and adding the header to the body so as to generate the data; header information obtainment means for obtaining header size information of the data generated by the data generation means; management file generation means for generating a first management file that manages each clip of data that compose the clip recorded on the record medium with an identifier that uniquely identifies data that compose the clip, the first management file describing the reproduction information of data that compose the clip obtained by the reproduction information obtainment means and the header size information of each type of essence data of each clip obtained by the header information obtainment means, each clip being a predetermined structural unit of data; and management file registration means for registering management information of the clip, the management information being composed of the reproduction information of data that compose the clip and the header size information to a second management file that totally manages the clip recorded on the record medium with an identifier that uniquely identifies data that compose the clip and information that represents the recorded position of data that compose the clip.