A method for processing information and for transferring a first data stream file stored in an information processing apparatus to a recording and playback apparatus, the recording and playback apparatus recording a second data stream file and a second management information file used for managing the second data stream file using a predetermined directory structure, the method comprising the steps of:
- (a) performing control so as to record the first data stream file and a first management information file used for managing the first data stream file in the recording and playback apparatus;
- and
- (b) performing control so as to additionally record or update the second data stream file and the second management information file that are recorded in the recording and playback apparatus on the basis of the first data stream file and the first management information file recorded in the recording and playback apparatus.