I used both Calibre and just copied all the files from the documents. Calibre is veeeeeeerrrrrrryyyyyyyy slow ( we are talking hours here) but it works. When I just copied everything in the document file and the collections files, all went fine in 8 minutes. An added bonus, all my "last page read" bookmarks were intact. This was not for Amazon books, just for books from here and ManyBooks.net.
|