Patent ID: 7702590

Claim:
A system for authorizing use of media files, comprising: a processor; and a memory connected to the processor, the memory storing instructions when executed cause the processor to perform steps of: accessing by a user computer a dynamic list of media files stored on a file server; downloading by the user computer at least one media file listed in the dynamic list; receiving a first request by the user computer for access to the at least one media file; accessing the at least one media file by the user computer based on the at least one media file listed in the dynamic list; accessing by the user computer an undated dynamic list of media files stored on the file server; receiving a second request by the user computer for access to the at least one media file; and determining by the user computer that the at least one media file is not listed in the undated dynamic list and based on the determination denying by the user computer the second request for access to the at least one media file not listed in the undated dynamic list.