Patent ID: 8570542

Claim:
An information recording device comprising: an information acquiring unit that acquires a plurality of pieces of file information; an additional information acquiring unit that acquires a plurality of pieces of additional information accompanying the acquired pieces of file information; a first storage area that has a predetermined capacity for storing the acquired pieces of file information; a second storage area that has the predetermined capacity for storing the acquired pieces of file information; and an information storing unit that stores the acquired pieces of file information in the first or second storage area, wherein in response to the pieces of additional information accompanying the acquired pieces of file information indicating the acquired pieces of file information are required to be stored in time order, the information storing unit stores the acquired pieces of file information into the first storage area in order of pieces of time information contained in respective pieces of additional information, and in response to a file capacity of one of the acquired pieces of file information being larger than an empty capacity of the first storage area, the information storing unit stores the one of the acquired pieces of file information into the second storage area.