HI havoc, The Media Renderer Device allows you to send mp3 files to your speakers, the files are sent by several smart apps like media renderer events apps, If you want to send music you can do it with several ios or andorid apps like Denon , or technics aps, the Mediarenderer device app will store all music you play and you can select it to play when something happens. This device is not a playlist manager you can not list your dlna servers on it, it just allow to send the mp3 links fle to your speakers and resume the music you are playing, not all dlna controllers works with ST, i suggest you to read the instructions in Media renderer player topic