Media Server

Hi
When I fire up Oplayer for MAC, I add the media server as "http://ipaddress:9000/TMSDeviceDescription.xml" which works fine and Oplayer instantly finds the NAS . I know Oplayer should find the UPNP NAS automatically, but to save time, is there anyway of making this added media server stick. So then I won't have to enter it next time I fire up Oplayer.
When I fire up Oplayer for MAC, I add the media server as "http://ipaddress:9000/TMSDeviceDescription.xml" which works fine and Oplayer instantly finds the NAS . I know Oplayer should find the UPNP NAS automatically, but to save time, is there anyway of making this added media server stick. So then I won't have to enter it next time I fire up Oplayer.