Patent ID: 8121460

Claim:
A playback device for playing back a recording medium having a video stream, playlist information, and a subtitle stream, wherein the playlist information includes a stream selection table showing a stream entry and a stream attribute for the subtitle stream to be permitted to be played back in a monoscopic playback mode, the playback device comprises: a register operable to store information of a video shift mode of the playback device, the video shift mode including an upward shift mode and a downward shift mode, wherein when the playback device performs the upward shift mode based on the information stored in the register, the playback device shifts video data formed from the video stream in a video plane upward and locates subtitle data formed from the subtitle stream in a lower end of the video plane, and wherein when the playback device performs the downward shift mode based on the information stored in the register, the playback device shifts the video data formed from the video stream in the video plane downward and locates the subtitle data formed from the subtitle stream in an upper end of the video plane.