[GilbertH]

Hi,

This weekend I've spend quite some hours cleaning up my library. Names, covers etc.

Now I'm done, I'm noticing something really weird.

After running an (external, not Calibre) double-file-killer-program on the directory containing my library, I notice that I have a LOT of double files.

For example (one directory) :
Bas Banning - Smokkel in De Pol - A. van Aarden.epub
Bas Banning - Smokkel in de Polder - A. van Aarden.epub
cover.jpg
metadata.opf

When I look up this book in my Calibre library, and go to metadata, I only have one file listed here. Unfortunately I cannot see which of the above two identical files are 'connected' to Calibre.

How can I find out which file is connected, and which file I can safely delete?
Furthermore I would also like to know how this happened, so I can prevent this in the future... All these double files are taking up a lot of extra space and backuptime.

Thnx in advance!