Apparatus, program, and method for playback

摘要

A playback apparatus performs multiangle playback by selectively playing back a plurality of video streams stored on a BD-ROM and a hard disk. In response to a user operation requesting an angle change, the playback apparatus reads a video stream corresponding to the requested angle either from the BD-ROM or the hard disk. During playback of a video stream stored on the hard disk, a-drive device of the optical disc is controlled so that the optical pickup always points to an area of the BD-ROM where a video stream is stored.