Content providing method, content playback method, portable wireless terminal, and content playback apparatus

摘要

Content data is provided as follows. If a request for providing a content is received from a portable wireless terminal or a content playback apparatus associated with the portable wireless terminal, then content data of the requested content in a form adapted for use by the portable wireless terminal is provided to the portable wireless terminal. Furthermore, content data of the requested content in a form adapted for use by the content playback apparatus is also provided to the content playback apparatus, or a process for providing content data of the requested content in the form adapted for use by the content playback apparatus is performed.