Currently no
one knows (or is saying they know) how to encrypt 7800
carts.
Actually, I seem to recall that a guy in rec.games.video.classic has
figured it out, but there hasn't been any practical application of it
yet. But I haven't read r.g.v.c in a LONG time, so things may have
changed...
I wish I could remember his name... he was one of the big cheese
techie
types in the newsgroup that was always hacking up weird stuff, so I
don't
doubt that he did it.
-------
My good friend, Bruce Tomlin, was the person who did that.
-Mp