Abstract: An action selection device (10) includes an action selection unit (22). The action selection unit (22) acquires from a memory (30), an action list (31) in which a requirement recognition area is associated with each action of a plurality of actions, the requirement recognition area indicating an area for which recognition by a sensor is required. The action selection unit (22) acquires from a peripheral recognition device (53), a recognition area (53a) recognized by sensors (53-1) that the peripheral recognition device (53) has. The action selection unit (22) selects from the action list (31), an action associated with the requirement recognition area included in the recognition area (53a).

Abstract: In a video/audio information recording/playback apparatus and method for recording programs in a recording medium in accordance with reservation information, and reproducing the recorded programs, attribute information for grouping a plurality of programs recorded according to reservation information is added to each of the programs recorded according to the reservation information. In addition, the number of programs constituting a unit of processing is set, and information representing the above-mentioned number of programs is recorded together with the program recorded according to the reservation information. A new program is recorded, while preserving the previously recorded program or programs, until the number of recorded programs belonging to the same group reaches the above-mentioned number of programs constituting the unit of processing. After that, a new program is recorded in replacement of an old program of the same group.