A reading section (10) reads information recorded in an optical disk and outputs a read signal. A DSP (20) detects the read signal, and make it reproducible. An operational instruction recognizing section (51) recognizes an instruction for a specified position of the information. Then a display control section (54) makes a cue point position display section of a display section (130) display an instructed position. Because of this feature, the specified instructed position can be recognized easily and accurately.