A digital content reproducing apparatus is provided with a plurality of user operation interfaces, e.g., a linear content operation panel and an interactive content operation panel, a data monitor unit monitors information on digital contents, and upon occurrence of a change, the plurality of user operation panels are automatically and exclusively displayed in an operation panel display area. Accordingly, only usable operation keys can be displayed, user operation learning time can be shortened, since the panel rendering area is made small, a mouse motion distance can be shortened, and easy to use can be improved. Further, since the panel rendering area is made small, the image display area can be made relatively large.