A method of restricting client interaction of deliverable electronic media. In one embodiment, the method is comprised of detecting a media player application operable within a computer system. The media player application enables the computer system to present contents of a media file. The present method is further comprised of governing within said media player application a function that enables non-compliance with a usage restriction applicable to the media file. The present method is further comprised of controlling output of the media file. The controlling is performed by a compliance mechanism coupled to the computer system. The compliance mechanism is for enabling compliance with the usage restriction applicable to the media file.