Hi,
if you want to delete only special formats, you can use:
(right click on selected book(s))
Remove books --> Remove files of a specific format from selected books...
then you can choose the format you want to remove.
Or, you can use:
(right click on selected book(s))
Remove book --> Remove all formats from selected books, except...
then you can choose the format you want to hold.
Bratzzo
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