[rushb]

Can someone please explain how it is possible to license a database of such sort in the first place? Pretty much all file types have some documentation on how to identify them by reading specific bytes, it's not like the folks from freedesktop invented those methods. On top of that, having the DB licensed under GPL would mean that every line of it is also under GPL, thus forcing the same GPL to all libraries out there that do even a simple PNG check using a magical byte check?

I'm really curious to understand how it this licensing works.