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			Part of the processing that Kobo does on adding a new book is to create multiple thumbnails of the covers on each ePub. 
 
I know there was a thread where someone talked about dropping some of these to free up space since not all the sizes made seem to be used by the Kobo.
		 
		
	
		
		
		
		
		
		
		
		
		
		
	
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