Recording method, recording medium, and recording system

Abstract

An information recording medium and an optical recording system allow target information (such as an ad) to be displayed without requiring changes in hardware or physical specifications. The recording medium comprises a recording-limited area in which recording is made possible by canceling the limit after an instruction is issued for displaying the target information.

1 . A recording medium comprising:
 a user data area,   an address information,   a code added to said address information, said code is inconsistent to corresponding said address information,   
     wherein said recording medium is unreadable at a certain drive. 
   
   
       2 . A recording medium according to  claim 1 ,
 wherein said code is an ID error detection code.   
   
   
       3 . A recording medium according to  claim 1 ,
 wherein said recording medium is readable at another drive.