like this one? http://www.alpinecom.net/phackmann/cdiadapter/index.php since i don't own cd-i system it could be very time consuming for both of us, are you devoted enough to do this? remote debugging and developing would require you to maka an adapter i would design and flash it every time i would ...
possibly there is no intrest in resurecting such old thread, but since i've already put 3 days of my time into this, maybe it would be good for someone somewhere if i shared the results i've developed simple SNES to 3DO adaptor, currently supporting only one controller - its not that its complicated...