If the user feels too much time has elapsed after activating a link to an external target, he or she can cancel the request without causing the system to crash. If the user needs to take some action, the player will prompt him or her. The device can continue to play while retrieving external resources. See sections 5 and 5.1 of the Text Navigation Features List. The user can move backwards and forwards through that list of locations.
User can skip through the document by time intervals set by the user.
Footnotes can be managed in a variety of ways. At any time during the reading of a note, the user shall be able to interrupt the reading and return to the point in the text immediately following the note reference. User can set one or more bookmarks for later access. Bookmarks are saved even when machine is turned off and are deleted only upon user initiation. User can tag bookmarks with text or voice labels.