Music folder much bigger than itunes library

[Naigi]

Hi, my itunes library says its 627Gb. However the itunes Music folder, once i excluded all the apps/podcasts etc, just the Music folder, is 673Gb. Why is that?



I tried importing it all into itunes, and no new tracks are added. So its not like there are lots of files in the Music folder, that are not imported into the library.



Also, when I scan that folder with FreeFileSynch App, it says it is 627GB, however other apps like DaisyDisk, or OSX finder seem to label it as 673...



Any idea of where the issue is?

Attached are snapshots of

1-Finder

2-Itunes

3-FileSynch