You can listen to music that is stored on uPnP and DLNA media servers. This music service will automatically discover all your uPnP (Universal Plug and Play) and DLNA media servers present in your network. CasaTunes supports most uPnP and DLNA media servers, including many popular applications and NAS devices, including Plex, Twonky, and JRivers.
You can filter the list of available media servers displayed in CasaTunes by excluding any media server you are not interested in.