Patent ID: 8385717

Claim:
A reproducing apparatus comprising: a processor; an acquisition section, implemented by the processor, configured to read out recorded data from a disk and acquire related data related to the recorded data from a memory source that is different than the disk; a reproducing section, implemented by the processor, configured to generate data by using the recorded data read out by the acquisition section and the related data acquired by the acquisition means and output the data as reproduced data; a generating section, implemented by the processor, configured to generate specific information that specifies the related data based on data appended to the related data acquired by the acquisition means, the specific information being a hash value of an electronic signature provided from the acquisition section; and a memory control section, implemented by the processor, configured to cause memory means to store reproduction-stop position information indicating reproduction-stop position on the disk and the specific information when the reproduction of the reproducing section is halted.