Patent ID: 8254233
Filing Date: 2012-08-28
Classification: G11B

Abstract:
1. An information recording device for recording information in information recording media manufactured by using stampers, the information recording device comprising: a second sub information generating section that generates second sub information by data-converting stamper unique information common for each stamper, based on medium unique information that differs for each of the information recording media having recorded thereon in advance main information and first sub information that is obtained by data-converting reproduction permitting information necessary for reproducing the main information based on the stamper unique information; and a second sub information recording section that records, in each of the information recording media, the second sub information generated by the second sub information generating section in a form different from forms of the main information and the first sub information, wherein the reproduction permitting information is converted into the first sub information by using the stamper unique information, and the second sub information generating section converts the stamper unique information into the second sub information by using the medium unique information.