Patent ID: 8478106

Claim:
A recording and reproducing device that records and reproduces information, said device comprising: an obtainment unit operable to obtain first information from an outside of said recording and reproducing device; a second information generation unit operable to convert the first information obtained by said obtainment unit to second information having a same content as a content of the first information and having a bit rate different from a bit rate of the first information; an information recording and reproducing unit operable to record the first information and the second information in a recording medium, and reproduce information recorded in the recording medium; a management data reading unit operable to read a management data recorded in the recording medium, the management data indicating that one of the first information and the second information is valid and that the other one of the first information and the second information is invalid; a management data recording unit operable, when said information recording and reproducing unit records the first information and the second information, to generate the management data indicating that the first information is valid and the second information is invalid and to record the management data in the recording medium; and an output unit operable to output the information reproduced by said information recording and reproducing unit, wherein, when (i) the first information and the second information are recorded in the recording medium, (ii) said information recording and reproducing unit reproduces one of the first information and the second information which is indicated as valid in the management data, and (iii) said output unit outputs the one of the first information and the second information reproduced by said information recording and reproducing unit, said recording and reproducing device does not output the other one of the first information and the second information which is indicated as invalid in the management data to the outside of said recording and reproducing device.