A plurality of identification miniature images for to-be-replayed objects is displayed simultaneously on a manipulating-function menu screen with taking one of the to-be-replayed objects corresponding to one of the identification miniature images in a predetermined position as a to-be-replayed object of interest. There are displayed a first group of a plurality of manipulating-function items for the respective to-be-replayed objects and a second group of a plurality of manipulating-function items related to a plurality of to-be-replayed objects. While any one of the manipulating-function items included in the first group is being selected, the identification miniature image corresponding to the to-be-replayed object of interest is displayed for differentiation from the other identification miniature images.