[davidbains]

I am using an earlier version of Maxsea (v7) which you can still purchase.
It's the last version compatible with Mac (OS9).
Running it on a dual boot IBook. But should work well on an older G3
Powerbook which can be cheaply obtained now.
Happily answer questions on set up.
Mapmedia charts seem to be best, I couldn't manage the configuration
with ARCS charts.
David.