Yes, why shouldn't it work? :-)

What do you mean by "compatible with UPC Cablecom"? The player doesn't have to be compatible with anything except your TV and your Wi-Fi! Just plug it in, log on to the WLAN, install a few updates and you're done :-) The only compatible thing you need is the HDMI socket on your TV to connect it. Your setup box (I assume that's what it's called at Cablecom) is also plugged into such a socket, so for your TV it's simply another signal source - player and box have nothing to do with each other and can be used completely independently of each other. Everything clear? ;-)