Calibre 0.7.22, Empty eBooks not saved on Save to disk?
First, thank you for the bulk ISBN lookup feature; that's incredibly useful.
I've been using Add Books->Add from ISBN and Add Empty book to use Calibre to catalog my paper library with metadata; unfortunately, when I attempt to save my library to disk, it appears Metadata-only books are not saved at all. No directory whatsoever is created for them, and no error or warning is produced.
How do I back up the list of my paperbacks and their metadata, to move them between Calibre installations or to survive a hard drive crash?
Secondarily, can I get my Sony PRS-650 to recognize them, so when I'm at a bookstore, I know what I do and do not have?