To allow audio data to be used excepting for ones already prepared at the side of a world wide web(WWW) server or WWW client when preparing a home page.

A hyper text mark-up language(HTML) file placed at a WWW server is read into a WWW browser of a client. At the side of the client, audio data prepared by a user are selected, for example, and transmitted to the server. Next, the audio data prepared at the side of the server are selected by the client. The selected audio data and the audio data transferred from the client are put to togethe. The combined audio data are preserved at the server while applying a specific uniform resource locator(URL). At the server, the HTML file describing the URL of the combined audio data is automatically generated.