Abstract: Method and apparatus for providing copyright protection of downloaded media files (audio, video or images) is provided. The method and apparatus specifically comprise wrapping the copyrighted media file into an executable wrapper along with information about the media, information about the user downloading the media, information about the usage of the media, a media player, helper scripts and any sets of keys used to encrypt the media file or the other information. The present invention also includes running this executable wrapper on the user's computer to decrypt and extract the wrapper and its various components provided user enters a valid pass code. The components of the wrapper make sure that the media can be played only for the requested period and in the prescribed or pre-arranged manner.

Abstract: A system, method and apparatus for providing a two dimensional image that will be perceived by the human visual perception system as a three dimensional image is disclosed. The system and apparatus preferably employ a transparent rear projection screen onto which an image of the at least one object to be displayed is projected. The at least one object moves at perceptual speed and preferably has highlights, comprising specular highlights, ambient lighting, shadows and reflections, consistent with its display location so that the human visual perception system perceives the displayed image as a three dimensional one. The method preferably comprises surveying the display site to identify important light sources and objects and to gather a reflection map which are both used to create the final displayed image.