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...http://www.google.com/patents/US7115807?utm_source=gb-gplus-sharePatent US7115807 - Information processing unit, display method for the information processing unit, program for the same, recording medium for recording the program therein and reproducing unit