Patent ID: 8548308

Claim:
A playback apparatus, a playback mode of which can be switched between 3D mode to show a user video frames stereoscopically and 2D mode to show the user video frames monoscopically, the playback apparatus comprising: a read unit operable to read a digital stream that includes a left-view video stream and a right-view video stream from a recording medium; a mode storage unit storing a current playback mode; a dimension determining unit operable to determine whether the digital stream read from the recording medium supports 3D mode; a demultiplexer operable, when (i) the digital stream supports 3D mode and (ii) the current playback mode is 3D mode, to separate both the left-view video stream and the right-view video stream from the digital stream, and when condition (i) or (ii) is not met, to separate one of the left-view video stream and the right-view video stream from the digital stream; a video decoder operable to obtain video frames to show stereoscopically or monoscopically by decoding the separated video stream; and a playback control unit operable to control the video decoder so that, when trickplay is requested while the current playback mode is 3D mode, a same video frame output from the video decoder is written on both a left-view video plane and a right-view video plane while maintaining the playback mode in 3D mode, wherein the same video frame is a video frame obtained by decoding one of the left-view video stream and the right-view video stream separated from the digital stream, and the left-view video stream and the right-view video stream being output without shifting coordinates.