Content using method, content using apparatus, content recording method, content recording apparatus, content providing system, content receiving method, content receiving apparatus, and content data format

Abstract

A method of using contents includes the steps of setting public time information and private time information, the public time information being associated with each content and defined universally for use by a large number of unspecified users, the private time being associated with the content and defined for use by a small number of particular persons, and searching for a content according to the public time information and/or the private time information and using the content detected in the searching.

What is claimed is: 
     
         1 . An apparatus comprising:
 at least one processor; and   at least one storage device   storing a first data comprising
 a public time information associated with a content; 
   storing a second data comprising
 a private time information associated with the content and 
 a user identification information.