Iceman, thanks for your great explanations on using SDuFat to write files.
You mentioned that it was slow to write. I'm seeing about 20 seconds / write after I made 50 or so writes. Is it that slow?
It starts out writing pretty quickly (1 sec/write) and then slows to a crawl. My "blank file" is fairly large ~130K. Is that the problem?
Any help or advice from anyone is appreciated.