Patent ID: 8468274

Claim:
An information processing device for accessing a plurality of types of recording mediums each storing an identifier uniquely identifying the recording medium, the plurality of types of recording mediums includes a first type recording medium and a second type recording medium, the first type recording medium storing (i) an identifier uniquely identifying the first type recording medium and (ii) stream information obtained by encoding a work, the second type recording medium storing (i) an identifier uniquely identifying the second type recording medium, (ii) stream information obtained by encoding a work and (iii) first information related to the work, the first information being stored in a region different from a region in which the stream information is stored, and the second type recording medium requiring a network connection at a time of playback of the second type recording medium, the information processing device having: a reading device operable to read a recording medium mounted on the information processing device; a storage for storing data; and a network connection function to establish a network connection, the information processing device comprising: a judgment unit operable to judge, based on the first information related to the work and stored in the region different from the region in which the stream information is stored, whether the recoding medium mounted on the information processing device is the first type recording medium or the second type recording medium configured to establish a network connection; a network access unit operable to access a network using the network connection function and based on the first information related to the work and stored in the region different from the region in which the stream information is stored, if the mounted recording medium is judged to be the second type recording medium; a download unit operable to download second information related to the work via the network; a record unit operable to record the downloaded second information related to the work to the storage; and a playback unit operable to play back the recorded second information related to the work.