i run my cable and blueray into my stereo sorround system. it has 7 input options. i then run a wire from the stereo to my projector, which is mounted up near the ceiling and really not possible to reach with a standard computer to monitor cord.
this is what the back of the stereo looks like:
so i bought one of these things on ebay:
i thought I would be able to hook one end into my computer and then plug the red/blue/green cords into the componant video jacks. evenrything fit right and looked great, but I couldnt get anything but a black screen.