Patent ID: 7366733

Claim:
A recording and reproducing system comprising: a record medium for holding a plurality of data files for storing predetermined data; play list recording means of recording a play list for describing reproduction order in which the predetermined data stored in all or a part of said plurality of data files respectively is reproduced by using a unique data file ID given to each of said data files in a play list file for storing said play list held in said record medium; and data reproducing means of reproducing the predetermined data stored in all or a part of said plurality of data files respectively by using said reproduction order based on said recorded play list wherein said plurality of data files further store parameter information used to reproduce said predetermined data respectively, parameter information recording means of recording all of the parameter information stored in said plurality of data files respectively in a parameter information file for storing said parameter information held in said record medium is further provided, and each of said plurality of data files is given said unique data file ID by using order in which said parameter information file stores said parameter information.