[BetterRed]

@jaimesuez - you might want to maintain a library mirror via the Save to Disk facility, it should have folder and files named as they appear in the book list - ie in Greek characters.

This will protect your investment, so should you stop using calibre you'll be left with a set of folders with Author and Book titles in Greek. It would mean you'd have two copies of the format files - but disk space is cheap or you could use cloud storage.

Rather than Save to Disk, you could do the mirroring via the Connect to and Send to facilities. I suspect they might be more amenable to some automation because they are aware of what's already there. The Connect to Folder feature has similar functionality as the Connect to Device feature.