I've been talking to the company that sold me the adapter.  They suggested I try a smaller memory card.  Is 16gb too much for OS 9?  If there's a maximum I would imagine it's way more than that [just of storage in general I mean not specifically of flash cards].  Any thoughts?

I actually also remember seeing (I forget in what context - it may have been SD > CF adapters) 2gb and under limits noted.  Is it possible this adapter simply won't work with over 2gb of memory?  Is that an obvious principle that I have just missed...?