[mrmikey]

Here's a couple screenshots, first the warning and then the duplicate book that already is in Calibre.
They both have the same name but obviously different authors. I first assumed the contents of the .epub were wonky but they both have the correct contents as to naming.
How would I change it to use authors as a second sort where I can't get the second into Calibre without overwriting the first.
Sorry for the my confusion and the bad description on my first post.
Adding something different such as a a 1 or2 at the end of the filename does nothing
**EDIT**
Got it, I was making things a lot more complicated than I had to. I changed the name of the book already in Calibre by adding a 1 to the end.