INFORMATION PROCESSING DEVICE, INFORMATION RECORDING MEDIUM, INFORMATION PROCESSING METHOD, AND PROGRAM

摘要

To determine whether or not a correct continuous reproduction disk has been attached, and perform control in accordance with a determination result in a data reproduction process including a first information recording medium and a second information recording medium.　A first root certificate transform value is calculated by applying a first transform function to data constituting a first root certificate recorded in the first information recording medium and a second root certificate transform value is calculated by applying a second transform function to data constituting a second root certificate recorded in the second information recording medium.　Transform values based on first and second root certificates are compared.　A process under execution is continued when the first and second root certificate transform values match.　However, the process under execution is stopped or a warning is output when the first and second root certificate transform values do not match.