1. A playback device comprising: a command input unit to accept a manipulation command entered by the user; a display controller to generate image data on a manipulating-function menu screen including a plurality of identification miniature images for respective ones of a plurality of to-be-replayed objects; and a display output unit to output the manipulating-function menu screen image data from the display controller to a display unit, the display controller functioning to: display the plurality of identification miniature images for respective ones of the plurality of to-be-replayed objects simultaneously on one display 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, while displaying a first group of a plurality of manipulating-function items for each of the to-be-replayed objects and a second group of a plurality of manipulating-function items for each of the plurality of to-be-replayed objects so that one of the manipulating-function items can be selected by an operation made via the command input unit, with an indication of which one of the manipulating-function items is being selected; and display, during selection of any one of the manipulating-function items included in the first group, the identification miniature image corresponding to the to-be-replayed object of interest in such a manner that the identification miniature image can be differentiated from the other identification miniature images.