Use FAT16 for devices up to 2GB in size, FAT32 for larger devices.
Most USB drives are preformatted with FAT when you buy them, so the first thing to do is to just try it to see if it works.
Ok so in my case I should use FAT32 .
I've been having the flash disk I mentioned above for over a year and it has worked so far
So that leaves only formatting it with FAT32 with a larger cluster size to see if it works with my electronics , If I know it wouldn't destroy the flash disk I certainly would like to try
Thanks so far for your help