Originally Posted by ccayer
Would it be a good idea to have some sort of backup feature? For example, when Calibre closes, it could make a backup of the db, keeping at most x backups?
Again, it is not the Calibre database that is corrupt. The problem is the Sony database (media.xml) on the device. Or, at least Calibre has a problem reading the database. I say that because there are no other ill symptoms using the device.