In a preferred embodiment, the UI change routine has the step of selecting a media ID. With the step of selecting a media ID, the user selects a media ID within the UI which becomes part of the change signal in the course of executing the UI change routine.
In a preferred embodiment, as part of the library routine, the user is shown a media ID or a plurality of media IDs in a GUI, from which the user can select at least one media ID by interacting with the GUI. For example, content buttons are shown to the user in a screen view, a respective content button being assigned to a media ID within the UI. The user can select the media ID by pressing the content button in the screen view.
In a preferred embodiment, the selection of a media ID triggers the UI change routine. In an alternative embodiment, after the selection of the media ID, a check is conducted to determine whether the selected media ID has already been assigned to the user or to a user group to which the user belongs. This test will determine whether: