On a different note, does anyone know of a S-Video to HDMI upscaler that preserves the 4:3 aspect ration? I have to buy a new TV as my old one is starting to die :( All the modern ones I've looked at lack S-Video. My NAD T-747 has S-Video input, but the upscaler stretched the image to 16:9.
If you're going that far, why use S-Video when you could use RGB SCART? You get as pure of a signal as you can get that way.
Last time I checked over at the Shmups Forum, I caught wind of another Micomsoft device-a "Frame Meister G2" HDMI upscaler designed to take all sorts of analog signals, including 240p RGB from retro consoles in traditional Micomsoft fashion. They'd probably have the sense to include a letterboxing function, given the kinds of people who go to great lengths to run RGB out of old consoles like that anyway.
The problem is finding them for sale outside of Japan for a reasonable price, if their XRGB upscalers (meant for VGA output) are anything to go by.