I prefer to store financial data on floppies rather than on my hard drive. Recently I went to back up a floppy and when I inserted the destination disk
it told me "Windows cannot write to the destination disc. Make sure it is not marked as read only, damaged, or in use".
I tried 3 different disc on which I had earlier backups (which always used to work OK) , and then a brand new one with nothing on it.
All with the same results. I wouldn't have thought that a new disc would be marked read only