To execute item display high in visibility for menu items, and excellent in using convenience.

An optional 'sound setting' item 44 selected in correspondence to an operation of a jog dial 13 is recognized in a menu screen 30 displayed on a display part 9, the recognized 'sound setting' item 44 is displayed with the highest brightness level, brightness levels of other unrecognized non-selected items are displayed while brightness levels thereof are reduced gradually in accompany with separation from the 'sound setting' item 44, and a sight line of the user is thereby made to be watched inevitably toward the selected item to enhance the visibility of the selected item, since the 'sound setting' item 44 of the selected item gets bright to be easily watched although the non-selected items are gets difficult to be watched.