For the up-converting DVD players (I just ordered the OPPO 981), do you HAVE to use the HDMI cable to get the "up-conversion" or can you use and S-video cable? I realize that there may be a difference in image quality, but I cannot access the crawlspace where my wires are run because I am still recovering from back surgery. Also, I need a 20 to 25 foot HDMI cable and don't have the funds right now. Just wondering if the S-video cable that is presently run will still up-convert the DVD's or if the HDMI is required to do so. Thanks for your help.