first download the ext-rom maker kit from here;
then download the attached tutorial.
A great deal of time and patience was needed to put this together, from me, so please drop by the forum to say thanks if nothing else.
I know some of you would like to be able to extract you own extended rom base from your roms, this is easyest way that I could come up with for everyone specially the novices, plus that is another tutorial.
please post your coments/problems here for the benefit of every one
Jose faria [aka] faria