Storage medium, reproducing method, and recording method

Abstract

According to one embodiment, a write-once type information storage medium using a recording material which has a low to high characteristic that a light reflectivity in a recording mark increases with respect to a non-recording area and which has a recording characteristic in accordance with a principle of recording without substrate deformation, wherein the recording material includes at least an organic metal complex, and wherein the organic metal complex includes a center metal.

1 . (canceled) 
     
     
         2 . An information storage medium comprising: 
       a first layer; and 
       a second layer, 
       wherein 
       the first layer comprises:
 a bust cutting area; 
 a system lead-in area located outward of the burst cutting area; 
 a data lead-in area located outward of the system lead-in area; and 
 a first data area located outward of the data lead-in area, 
 
       the second layer comprises:
 a second data area; 
 a data lead-out area located inward of the second data area; and 
 a system lead-out area located inward of the data lead-out area, 
 the burst cutting area, the system lead-in area, and the system lead-out area have a first track pitch, 
 the first data area, the second data area, the data lead-in area, and the data lead-out area have a second track pitch, 
 the first track pitch is bigger than the second track pitch, and 
 a whole of the data lead-in area and a whole of the data lead-out area overlap each other in a radial direction. 
 
     
     
         3 . A reproducing method for the information storage medium according to  claim 2 , the method comprising:
 irradiating the information storage medium with light; and   reproducing information from the information storage medium.   
     
     
         4 . A reproducing apparatus for the information storage medium according to  claim 2 , the apparatus comprising:
 an optical head configured to irradiate the information storage medium with light; and   a reproducing module configured to reproduce information from the information storage medium.   
     
     
         5 . A recording method for the information storage medium according to  claim 2 , the method comprising:
 irradiating the information storage medium with light; and   recording information on the information storage medium.   
     
     
         6 . A recording apparatus for the information storage medium according to  claim 2 , the apparatus comprising:
 a recording module configured to irradiate the information storage medium with light and to record information on the information storage medium.