Optical disk apparatus and waiting method thereof

An optical disk apparatus comprising:

• an optical head which irradiates an optical disk having an information recording layer with a laser beam or receives reflected wave, and performs recording processing or reproducing processing;
• a waiting position decision portion which detects physical properties of each region in the optical disk when the optical disk is newly mounted and detected by the optical head, and decides a waiting position of the optical head according to the physical properties;
• and
• a control portion which controls a position of the optical head according to the waiting position decided by the waiting position decision portion in order to move the optical head to wait.

A waiting method of an optical disk apparatus having an optical head which irradiates an optical disk having an information recording layer with a laser beam or receives reflected wave and performs recording processing or reproducing processing, comprising:

• rotating the optical disk at predetermined rotation speed;
• detecting physical properties of each region in the rotating optical disk after the recording processing or reproducing processing is finished, and deciding a waiting position of the optical head according to the detection;
• and
• controlling a position of the optical head according to the decided waiting position in order to move the optical head to wait.