It might be more convenient to sync the libraries instead.
There are many different excellent sync programs available, many of them free. Try to Google "sync utility {name of your operating system}".
Using a sync program you typically only have to update metadata.db and changed/deleted/new books. Can be very fast. I use rsync (cross platform) and Back In Time (Linux) to maintain several generations of backups of my calibre library.
Last edited by Adoby; 08-21-2013 at 03:28 AM.
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