Storage medium, reproducing method, and recording method

Abstract

According to one embodiment, a write-once type information storage medium comprises an organic dye based recording material having sensitivity at a 5 wavelength of 405 nm and at a recording wavelength in the range of 600 nm to 700 nm, wherein, when absorbance of a maximum absorption wavelength in the vicinity of 405 nm is defined as 1, the absorbance is 5% or more at any wavelength in the range of 600 nm to 700 nm.

1 . (canceled) 
     
     
         2 . A non-transitory machine readable information storage medium comprising:
 a data area including data to be reproduced by a Viterbi decoder.   
     
     
         3 . A reproducing method for reproducing data from the non-transitory machine readable information storage medium according to  claim 2 , the method comprising:
 irradiating the non-transitory machine readable information storage medium with light; and   reproducing the data from the non-transitory machine readable information storage medium.   
     
     
         4 . A recording method for recording data on the non-transitory machine readable information storage medium according to  claim 2 , the method comprising:
 irradiating the non-transitory machine readable information storage medium with light; and   recording the data on the non-transitory machine readable information storage medium based on the information stored on the control area.   
     
     
         5 . A reproducing apparatus for reproducing data from the non-transitory machine readable information storage medium according to  claim 2 , the apparatus comprising:
 a module configured to irradiate the non-transitory machine readable information storage medium with light and to reproduce the data from the non-transitory machine readable information storage medium.   
     
     
         6 . A recording apparatus for recording data on the non-transitory machine readable information storage medium according to  claim 2 , the apparatus comprising:
 a module configured to irradiate the non-transitory machine readable information storage medium with light and to record the data on the non-transitory machine readable information storage medium based on the information stored on the control area.