Patent ID: 8111601

Claim:
A method of forming a visual image having a specified shape on a surface of an optical disk by using an optical writing process of irradiating a laser beam onto the surface of the optical disk to form pits, the optical disk being capable of recording information on the surface thereof by the optical writing process, the method comprising the steps of: checking a recording state of an optical disk to determine whether or not the optical disk is capable of additionally recording information; prompting a user on a display to instruct whether or not the optical disk should be made unable to additionally record information in case that the optical disk is determined to be capable of additionally recording information; placing the optical disk in a recording end state while an available area is left on the surface of the optical disk when the user instructs that the optical disk should be made unable to additionally record information on the available area any more, and subsequently forming the visual image in the available area of the optical disk by using the optical writing process; and terminating processes of the optical disk without placing the optical disk in the record end state and without forming the visual image when the user does not instruct that the optical disk should be made unable to additionally record information.