calibre creates collection on Sony PRS700 but does not transfer book into it
I have to start using Calibre for my file transfers to my Sony Reader 700 since my reader library software is not working anymore (very frustrating). I tagged a book with a collection title and transferred the book from Calibre to my reader. The book transferred to my reader OK (I can see it from "Books" and open it from there), and Calibre created the correct collection folder but it did not transfer the actual book to the collection. The folder reads "no books" in the collection. What happened here and how can I get this fixed?