So here’s the deal, I’ve updated the meta data of my 2200+ movies probably a dozen times over the last couple of years. I don’t know why the meta data just kind of forgets itself and disappears. Not all movies but just the 40 or 50 movies that doesn’t generate the right meta data from the beginning. I have cloud sync on and sync between two Apple TVs and an iPhone. We need a way to backup the metadata to an xml file on the Apple TV and then import that file if need be.
Similar request running here Let Infuse use a NAS as the backup point
You may want to add your support to that thread.