[PatNY]

I have 5 custom metadata fields. When I archive books for backup purposes, I would like to make sure any data in those fields is kept in the book so that if I had to use the backup copies in the future all the custom metadata would still be there and show up.

Copying a book from within one library to another seems to be no problem. All the custom metadata shows up in the Calibre interface. But if I save the book to disk, and then import it into a library using "add books ..." not all the custom metadata shows up. One field does, but others do not.

I have a custom tweak to hide custom metadata from the content server, but that is so books imported into Stanza don't show that metadata. I would think that when you archive/save books, this shouldn't matter and all custom metadata should be saved.

So the question is, what settings/tweaks should I have to ensure that all books backed up have all custom metadata included? And what is the best way to process and copy these books for archiving purposes (ie, save to disk, or manually copy from a library directory or another way?).