This invention provides a method for creating, updating, and recording
information for seamless presentation of moving picture data in a
rewritable recording medium. When recording moving picture data on a
rewritable recording medium, seamless presentation information, a part of
navigation data, is recorded along with the picture data for seamless
presentation of the recorded picture data. The method for creating and
recording seamless presentation information of the present invention can
effectively reduce the amount of created seamless presentation
information by omitting some fields of the seamless presentation
information when they are unnecessary. If some video objects of recorded
picture data are erased, navigation data related to the removed video
objects should be erased and seamless presentation information should
also needs proper modification. The method for updating and recording
seamless presentation information of the present invention enables
effective management of seamless presentation information by updating
seamless presentation information related to the video object following
erased video objects.