KOF and other cdr question...

I downloaded a few games like King Of Fighters, Street Fighter Vs. MSH and Final Fight Revenge.

The problem is while looking through some sites I'm not sure if I can play them after I burned the cd's.

If I convert the file with a saturn country convert tool, will I then be able to play it on my Saturn?

Or do I still need one of those 4-1 carts, or that KOF rom. Any help appreciated,

If it's KOF 95, then you need the original ROM cart. No ifs or buts.

With the other games you need a RAM cart to play them regardless of which country they are set to.
DoA doesn't need any expansions.. will work without any extra carts if you convert it to the right country.