Patent ID: 7593619

Claim:
A data processing apparatus comprising: control means for generating a control signal based on instruction information from a user; and recording means for recording data on a recording medium based on the control signal, wherein said control means controls said recording means to continue recording the data on the recording medium from an instructed recording end time at which an instruction to finish recording is received as the instruction information while the data is being recorded on the recording medium by said recording means to a real recording end time determined by a predetermined condition, and to finish recording the data on the recording medium at the real recording end time; wherein in addition to the data for an instructed recording period from an instructed recording start time at which an instruction to start recording is received as the instruction information to the instructed recording end time at which an instruction to finish recording is received as the instruction information, said control means controls said recording means to record on the recording medium the data for a first period from a time before the instructed recording start time, which is determined by a first condition in accordance with the instructed recording start time, to the instructed recording start time; and said control means manages as a clip the instructed recording period and the data for the first period and the data for a second period from the instructed recording end time to the real recording end time, and generates management information for managing the instructed recording period and the data of the first period and the second period as an extended clip, wherein the management information is generated for each of the extended clips, and contains clip information for specifying a head and an end of each of the extended clips and for specifying a head and an end of each of the clips, wherein at least one of the information for specifying the head of the clip and the information for specifying the end of the clip is changeable within a range between the head and the end of the extended clip wherein at least one of the playback start point and the playback end point of each of the extended clips in the edit list is changeable, wherein, when at least one of the playback start point and the playback end point of each of the extended clips in the edit list is changed, said control means automatically changes information for specifying the head and the end of the corresponding clip information when the changed playback start point or playback end point is outside the range specified by the head and the end of the clip information.