Patent ID: 6934744

Claim:
A service system comprising: a digital versatile disc having a first file which stores video and audio information and a second file which stores playback control information for the information in the first file, the information being normally unable to be played back from said versatile disc; a terminal connected to a network and adapted to receive said digital versatile disc; and a server arranged in the network and having repair information which can repair the information in said digital versatile disc, said server returning the repair information to said terminal and causing said terminal to play back the information from said digital versatile disc upon receiving a playback request for the information in said digital versatile disc from said terminal when said terminal uses said digital versatile disc wherein said server comprises first and second servers, said first server having a database in which a pair of identification information of a student who learns a subject using said terminal and progress information of the subject are registered, and having a first memory which stores contents of each page of the subject, said second server having a second memory in which a pair of the repair information and playback control instruction information for said digital versatile disc are registered in relation to playback designation information output when said terminal sends the playback request, and said first server transmitting page contents of said first memory designated by the progress information corresponding to the identification information of the student in said database and causing said terminal to display the contents at the time of learning by the student, and upon receiving the playback designation information output when said terminal sends the playback request, outputting the playback designation information to said second server and causing said second server to transmit, to said terminal, the repair information corresponding to the playback designation information and the playback control information for said digital versatile disc in said second memory, thereby allowing said terminal to play back the information in said digital versatile disc.