Compare and sync iPhoto library with other folders

I have several folders of photos from a defunct Windows pc, some of which are in the iPhoto library, others not. Is there any way of comparing the contents given that is is impossible to view the iPhoto library in Finder?

I have SyncFolder and would ideally like to sync the folders and library.

Gren said:

... given that is is impossible to view the iPhoto library in Finder?

Click to expand...

Actually, it is rather easy to view it: secondary click; select Show Package Contents:



Then go to the Masters folder to see your photos.

MBP17•David said:

Actually, it is rather easy to view it: secondary click; select Show Package Contents:

Then go to the Masters folder to see your photos.

Click to expand...

Thanks, unfortunately the way they are organised is unhelpful.