Patent ID: 8520056
Filing Date: 2013-08-27
Classification: G11B,H04N

Abstract:
1. A recording method for recording a data stream and management information on a non-transitory computer-readable recording medium, the data stream including a plurality of data blocks, the recording medium including a long jump region that is one of a region having at least a predetermined number of sectors and a region having a layer boundary, the data stream including a main-view stream used for monoscopic playback and a sub-view stream used for playback of stereoscopic video images in combination with the main-view stream, the plurality of data blocks including a plurality of main-view data blocks constituting the main-view stream and a plurality of sub-view data blocks constituting the sub-view stream, the recording method comprising the steps of: generating the plurality of main-view data blocks from the main-view stream; generating the plurality of sub-view data blocks from the sub-view stream; generating the management information to include a system rate of the main-view stream, a system rate of the sub-view stream, stereoscopic video playback path information, and monoscopic video playback path information; recording the plurality of data blocks on the recording medium; and recording the management information on the recording medium, wherein types of the data blocks are classified into common data blocks, monoscopic specific data blocks, and stereoscopic specific data blocks, each monoscopic specific data block exclusively includes a main-view data block and to be accessed only during monoscopic playback, each stereoscopic specific data block includes both a main-view data block and a sub-view data block and to be accessed only during stereoscopic playback, a main-view data block included in each of the monoscopic specific data blocks has the same content as a main-view data block included in one of the stereoscopic specific data blocks, in the common data blocks, the main-view data blocks and the sub-view data blocks are in an interleaved arrangement so that a first condition and a second condition are satisfied, in the stereoscopic specific data blocks, the main-view data blocks and the sub-view data blocks are in an interleaved arrangement so that the second condition is satisfied, without the first condition being applied, the common data blocks include a first common data block and a second common data block, a long jump region exists between a recording area of the first common data block and a recording area of the second common data block, one of the monoscopic specific data blocks and one of the stereoscopic specific data blocks are recorded between a recording area of the first common data block and the long jump region, or between the long jump region and a recording area of the second common data block, the stereoscopic video playback path information indicates a playback path representing that main-view data blocks and sub-view data blocks included in the first common data block, one of the stereoscopic specific data blocks, and the second common data block are to be played back continuously during stereoscopic playback, the monoscopic video playback path information indicates a playback path representing that main-view data blocks included in the first common data block, one of the monoscopic specific data blocks, and the second common data block are to be played back continuously during monoscopic playback, the first condition is that each main-view data block has a size no less than a predetermined value determined by at least the following factors: a preestablished rate at which a playback device reads the data stream from the recording medium during monoscopic playback; an average bit rate of the main-view data block; and a preestablished length of time necessary for the playback device to jump over a sub-view data block during monoscopic playback, and the second condition is that each main-view data block has a size no more than a predetermined value determined by at least the following factors: the system rate of the sub-view stream; and whether the main-view data block is included in either of two data blocks that are recorded with the long jump region therebetween in a manner that the two data blocks are to be read continuously.