Optical information storage medium reproduction apparatus and control method of the same

A rewritable and readable optical information storage medium reproducing apparatus comprising:

• an optical system configured to reproduce a rewritable and readable optical information storage medium that includes a plurality of information recording layers each including a recording mark having a length shorter than an optical system resolution limit, one of the plurality of information recording layers that is closest to a reproduction-laser-incident surface of the rewritable and readable optical information storage medium being capable of being read with a reproduction laser having power lower than that of a reproduction laser for reading another one of the plurality of information recording layers that is farthest from the reproduction-laser-incident surface, the plurality of information recording layers including at least one information recording layer in which setting information of reproduction laser power for each of the plurality of information recording layers, the setting information being intended for setting the reproduction laser power for reading the information recording layer that is closest to the reproduction-laser-incident surface to be not less than 1.0 mW but less than 1.1 mW, is stored;
• and
• a control section configured to set reproduction laser power for each of the plurality of information recording layers based on the setting information.