I wondered why a new Folder was created called SDCardBackup, which contained evrything that is held on my SD, which I had just transferred from my old phone to the new one. It looks like it is part of the automatic process, when you transfer the content of an old phone to a new one. A safeguard, I guess. I have tried deleting items from this Folder, and that seems to work OK. I suspect that it doesn't like the folder being deleted, but sub folders shouldn't be a problem.
