Patent ID: 8521010

Claim:
A content playback unit comprising: a content management mechanism that plays back a plurality of contents in a predetermined order to display images of the contents on an image display device; wherein the content management mechanism manages the contents by: adding numerical information indicative of scheduled playback time to the contents so that the playback time of each of the contents is a time measured from a beginning of present content that is presently being played back, and updating, when the playback of the present content has completed and the next content that has not been previously played begins being played back, the numerical information of each of the contents so that the playback time of each of the contents is a time measured from the beginning of the next content, wherein a start time of each of the playback times of each of the contents does change such that the numerical information indicative of the start time of the playback of the next content is reset from a number greater than zero that indicates a time at an end or after the end of the playback time of the present content to zero.