[mtothet]

Hi.
After adding book to library sometimes I want to change eg. title using "edit metadata" panel. After that new title is displayed in main window and correct data is saved to "metadata.opf" file, but after opening book via Calibre viewer or on my Kindle Classic the old metadata is displayed. It's no need to convert these book, because there're already in mobi format from bookstore. Can I change something in Calibre settings to overwrite old metadata or do I have to polish each book manually?
Thanks