Patent ID: 7519685

Claim:
A playback apparatus comprising: a reading unit that reads content stored on a recording medium; a receiving unit that receives, from a server, electronic bulletin board information corresponding to the content, the electronic bulletin board information containing (i) a comment corresponding to a predetermined position of the content and (ii) an instruction item that corresponds to the comment and indicates that a currently played-back position of the content is to change to the predetermined position of the content corresponding to the comment; a playback unit that plays back the content read from the recording medium and the electronic bulletin board information corresponding to the content; and a display unit that displays, on a screen, the content and the electronic bulletin board information corresponding to the content, wherein, when an instruction item of electronic bulletin board information displayed on the screen is selected from the screen, the playback unit changes a playback position of the content from the currently played-back position of the content to the predetermined position of the content corresponding to the comment.