...just thinking...
If it is just the title as seen in the opf I can see where there may be occasion to find incorrect duplicates. I would think that an author would rarely release another book with the same title - but a different story.
The opf (if that is where you get the title) also has the rest of the information to help distinguish the book:
Code:
<dc:title>Ender's Game</dc:title>
<dc:creator opf:file-as="Card, Orson Scott" opf:role="aut">Orson Scott Card</dc:creator>
<meta content="4" name="calibre:series_index" />
<meta content="Ender" name="calibre:series" />
I hope there is someone out there who can create a patch...and who is interested in doing so... it will take a while for me to teach myself how to program