DONI , i think the importance of e.DIGITAL encription patent are seen in item 35

0035] The present invention comprises multiple levels of security which enable digital media content to be securely transferred from a media content provider to a multimedia device. The digital media content can be securely stored within the multimedia device on a digital storage medium in a secured format. The secured format can include both encryption, scrambling, and the use of a predetermined storage format. An authentication code can be required before digital media can be downloaded to the multimedia device and/or removed from the device. A real time clock within the multimedia device can enable a media content provider to allow the digital media content to be performed in the multimedia device for a predetermined amount of time. The multiple levels of security provided by the multimedia device can create a synergistic effect, enabling a media content provider to set a desired level of security for their media files before the files can be stored on the multimedia device. The security can enable media content providers to distribute digital media content with minimal concern for violation of the media content provider's copyrights. This security can enable new opportunities to open, allowing convenience for customers and new markets for multimedia companies.