The Navigation bar provides page specific browser controls, based on the features you are using. These include the ability to go Forward and Back to viewed pages, Refresh a view, access Favorites, and other familiar browser functions.

Specific pages, such as My Library, will have additional controls that are unique to their area.
 

 
My Library, CD, and Devices have task specific commands listed on a Command bar; located at the bottom of each page (just above the Task bar).
 

 
The Task bar is located at the bottom of the Media Browser. Click on the various icons to open the associated pages. Each page provides access to specific abilities of the RealOne Player, so you can search for, store, organize, play, and save all your media clips.