Information storage medium, medium processing apparatus, and medium processing method

摘要

According to one embodiment, an information storage medium includes a light incident surface from which a recording/playback light beam enters, a reflecting layer which reflects the light beam entering from the light incident surface, a recording layer which is arranged between the light incident surface and the reflecting layer, and a playback signal emphasizing layer which is arranged between the recording layer and the reflecting layer, and used to emphasize a playback signal containing a reflectance change component generated by a recording mark formed on the recording layer.