Marvin needs to match the annotations to the book. The match works (more or less) in the following order of decreasing likelihood:
- The book is *exactly* the same as the one that created the annotations file.
- Calibre's UUID (Marvin will show a nag to confirm).
- Some other stuff like name and author (Marvin will show a nag to confirm).
This is a safe-to-cautious approach. Importing annotations into the wrong book can mess things up.
Edit: the file name is irrelevant.