In order that a digital video (DV) camera function as a WWW server in a network, an image capturing section captures an image of a subject. A DV encoder encodes an image signal input from the image capturing section. A recording and playback section plays back DV data recorded in a DV cassette tape. An IP packet assembling/disassembling section assembles a DV signal input from the DV encoder, a DV signal input from the recording and playback section, or an HTML file input from a WWW server processing section into IP packets, and outputs them to an IEEE 1394 interface. The IEEE 1394 interface transmits, via the network, the IP packets input from the IP packet assembling/disassembling section to a personal computer which accessed the DV camera.