Patent ID: 7835614

Claim:
A data recording apparatus for recording, onto a recording medium, AV data and postrecording data in synchronization with the AV data, on the recording medium, a plurality of user programs using an identical scene in the AV data being producible, and the postrecording data being referable from the plurality of user programs, and onto the recording medium, management information that manages a relationship between at least one of the user programs and the postrecording data being recorded, wherein, the postrecording data is a partial area in an area including a postrecording data group which is referred to from more than one type of the user programs, the area including the postrecording data group being recorded as one postrecording file, and for each piece of the postrecording data, the management information is recorded in a management information file, and an original program referred to from more than one type of the user programs includes only one management information file.