DVD-video playback apparatus and automatic disc change control method used in DVD-video playback apparatus

摘要

A DVD-video playback apparatus includes a navigation manager which estimates the size of each title included in a DVD-video disc when the navigation manager receives a playback start command for the DVD-video disc from a main controller. Then, the navigation manager sets titles whose sizes are larger than half of the size of the largest title as monitored titles, and starts playing back the DVD-video discs 1 by controlling a presentation engine. When the playback of all of the monitored titles is completed, the playback is stopped and a disc-change request is issued to the main controller. The main controller changes the DVD-video disc to another DVD-video disc by controlling a DVD changer, and issues a playback start command for the new DVD-video disc to the navigation manager.