lots of duplicate songs (multiple library entries pointing to the same song)
definitely not for me...
Also, is there is an easy way to remove all duplicate songs from the library?
You may use the smartlist wich can be found here:
Playlists -> Smartlists -> Audio -- Task -- possible duplicates - filename
or make smartlist/do a search to find just files you mentioned here:
duplicate songs (multiple library entries pointing to the same song)
by creating a new library with syntax:
~dup=[filename (name)]
It helps to find the dulicates. I know, it's just the half way. You have to delete the library entries on your own