Patent ID: 8285117
Filing Date: 2012-10-09
Classification: G11B

Abstract:
1. An information processing apparatus comprising: a data processing unit configured to verify data recorded on a disk and reproduce content recorded on the disk if a verification condition is satisfied; wherein the data processing unit verifies the validity of an ID inserter that has recorded, on the disk, an ID corresponding to the disk, and wherein the data processing unit acquires, from the disk, an ID inserter certificate containing an apparatus ID of the ID inserter that has recorded the ID corresponding to the disk on the disk and an ID inserter blacklist having apparatus IDs of invoked ID inserters registered therein, determines whether the apparatus ID contained in the ID inserter certificate is registered in the ID inserter blacklist so as to verify the validity of the ID inserter that has recorded, on the disk, the ID corresponding to the disk, and stops reproduction of the content recorded on the disk if it is determined that the ID inserter is not valid, wherein, when the apparatus ID contained in the ID inserter certificate is registered in the ID inserter blacklist, the data processing unit reads a content certificate that is recorded on the disk and that certifies the validity of the content and compares a content certificate issue date contained in the content certificate with an expiration date of the validity of the ID inserter contained in the ID inserter blacklist, and wherein, if an expiration date of the validity of the ID inserter is earlier than the content certificate issue date, the data processing unit stops reproduction of the content recorded on the disk.