Trial access for media files from a media list

摘要

A portable media device includes a processor and a memory. The memory stores instructions that when executed cause the processor to access a media file stored in the portable media device based on a trial access term for the media file, determine that a trial period within the trial access term for the media file has expired, and set the media file as inaccessible to the portable device in response to determining that the trial period within the trial access term has expired.

主权项

1. A portable media device comprising:
a memory that stores instructions; a processor that executes the instructions to perform operations, the operations comprising:
accessing a media file stored in the portable media device,wherein said media file includes a trial access term which indicates a maximum allowable number of times the media file can be played;retrieving a most recent dynamic list of media files;determining if said media file is shown on the most recent dynamic list of media files;determining that a trial period for said media file has expired when the media file is not shown in the most recent dynamic list of media files;setting the media file as inaccessible to the portable device in response to determining that the trial period for said media file has expired;determining if the media file has been played the maximum allowable number of times;setting the media file as inaccessible to the portable device in response to determining that the media file has been played the maximum allowable number of times;authorizing the media file to be played if the media file is shown on the most recent dynamic list of media files and the media file has not been played the maximum allowable number of times;modifying a header of the media file to indicate a new maximum allowable number of times the media file can be played.