I had successfully used my 1st gen Slingbox (s-video input) to sling DVD ISOs from my Xlobby HTPC (svideo output from video card) 10 years ago. Control was through Xlobby's web client, but also worked with UltraVNC. Last year I tried it again with my SlingBox Pro (svideo input) and the HDMI out from my PC via a HDMI to composite/s-video converter, but this failed. There was no video picture. I have considered trying it again with the new Slingbox 500, but I am not sure if AnyDVD running in the background would enable the HDMI to work.