For reasons I can't fathom I appear to have a lot of files on my drive that are considered as encrypted (I just tried to
xcopy /s /c /y /d a_dropbox_folder\*.* \\somewhere_on_my_nas_drive\ and got thousands of errors that the destination does not support encryption). I'm not convinced these files are encrypted - if they are decryption is transparent.
I'm a programmer and the area I'm backing up is my working project folders. Encrypted files included source code, generated DLL's , text files, zip files, data files generated by GIT and ReSharper...
The other clue is that all of this is in a folder managed by dropbox (although there may be similar issues outside of the DB folder - its the DB I'm trying to backup). I've added the /G option to xcopy and are re-running the backup, but I'd love to know whats going on.