A system and method for intermediating an audio/video (A/V) stream between a data network and an IEEE 1394 network are provided. In an exemplary embodiment, an A/V stream of an IP network is provided to a device connected to the IEEE 1394 network in real time, or the A/V stream of the IP network is once stored and then is provided to the device connected to the IEEE 1394 network when a viewer desires to view the A/V stream. The A/V stream can be provided to the viewer irrespective of the format parser, codec, transmission protocol, and transmission control protocol, required for the transrecorder's reception of the A/V stream from the media server or for the transrecorder's transmission of the A/V stream to the display device. Also, diverse A/V streams provided from the server of the data network can be stored, and then can be provided to the viewer through the display device whenever the display device connected to the IEEE 1394 network requests the A/V stream.