So that's a dead end. Converters might be found such as http://www.aja.com/html/products_converters_HD10MD3.html# but the question might be is this worth the few thousand bucks to do this?
i have an xbox360 going to my tv via component cables i have a capture card with composite cables going to my computer. when i use my tvs output(which is composite) i have no output when playing in high def. do you know if someone make a digital to analog converter with composite inputs and outputs and if it would work. thanks