Activation keys
Select
Menu
>
Tools
>
Actv. keys
.
Some media files, such as images, music, or video clips, are
protected by digital usage rights. The activation keys for such
files may allow or restrict their usage. For example, with
some activation keys you may listen to a music track only a
limited number of times. During one playback session you
may rewind, fast-forward, or pause the track, but once you
stop it, you have used one of the instances allowed.