Library refresh

I have my WD live player wired into my net. I still like to use the USB for files to regularly watch. I just move them from my PC to the USB. But is there a simple way to get the library to refresh? Other then shutting down and restarting the player, the new files do not show.

It should be refreshing the library every time you plug the USB disk in.

I am not removing the USB, I add  the files directly from my PC to the USB through my network.

Highlight the folder that represents the USB drive, hit OPTIONS – RESCAN.