''A system and method is disclosed for securely storing and performing digital media files in a multimedia device. The method can include the operation of storing one or more digital media files on a digital storage medium in a predetermined file format. The digital storage medium can located within the multimedia device. Data comprising predetermined file format information and the digital media can be secured on the digital storage medium without securing commands necessary to store the digital media on the digital storage medium. The multimedia device can be connected to an external source to authenticate the multimedia device. The digital media can be processed to a media form that will allow the digital media to be performed. A real time clock operatively connected to the multimedia device can be used to determine the length of time that a digital media file is stored on the digital storage medium.''

I know the filing dates on MS may fly in the face of this, but the 'encription' could have been spurred to secure files within PortableMediaPlayerss, but has since expanded and been refined to define Nunchi and now Semiconductors.

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