A disc drive, camera and a server are in communication with one another via a communication network. The disc drive plays back a disc in order to reproduce a recorded picture, whereby the picture and a real-time world view supplied from the camera are combined based on an address table managed by the server to produce a synthetic picture data. For example, a recorded picture reproduced from the disc and real-time world view taken by the camera are combined to synthesize a picture. Thus, content recorded in a recording medium can be used to produce the synthetic picture data.