Thanks for the insight on the reliability issue. I will build in some sort of CRC with multisector reliability cross checks to keep an eye on that. It seems to me that if sectors go bad, regardless of the way I use the storage I will have problems. It seems (if I stick with this technology) I simply have a choice in how I try to recover from any failures - FAT file system and it's utilities or straight memory mapping and my own utilities.
I will give it (my own mapping) and see what happens!
Thanks again for the response!
Ray
