[merijnb]

If you set the duplicate behavior to create new songs, then yes, it's going to generate duplicate songs in the library using the same files as the existing songs in the library. If you import a file named "Test.pdf" then import another file called "Test.pdf" with different contents, you should see the conflict dialog without having to restart the application or anything of that sort. I just ran this test and it worked fine regardless of what selection is made for the duplicate dropdown.

Thanks,
Mike

It seems the 'erratic' behavior I'm seeing is related to the other top I've replied (importing meta data). Could it be possible if I import a song "Test.pdf" where other meta data is included then the "Test.pdf" already there, it's not seen as the same file?

Also, I normally have files named Title - Key, so "Test - C.pdf". Until now, (using guess title from filename), the title of the song was always that "Test - C", now, it seems the key part is dropped (so now it's "Test" and not "Test - C"). Even when I select "use filename as title" the key part is dropped. How to always use the filename as title?

I'm not sure what the expected behavior is with duplicate detection in this situation?

Please see the other topic with the test PDF and importing that twice for more info.