But IF I would claim the copyright to the original mesh (which I won't) wouldn't I have to somehow PROVE that I made it? Not according to the above, at least until such situation as it is challenged. Then if you file it (you said you cannot file it in Denmark, but you could always file it in another country) or mail yourself a copy, you would have proof. Horrible, isn't it? Another thing is that I'm not sure whether or not I have the copyright on the POSER version of this jukebox. It wasn't Poser ready when I got it, and it is now. so I made it that. Or...? You certainly have copyright on the PP2 or CR2 itself. If you used embedded geometry (geomCustom) then you probably don't realistically have copyright on the geomCustom block. Or perhaps you do, but not on the mesh that it outputs. Actually, based on dealing with copyrights for games and such, that second thing would be right. Technically, there is no such thing as a mesh. There are only instructions for creating a mesh. You can copyright those instructions, but you seemingly cannot copyright a mesh because such a thing doesn't really exist. If you really wanted to get down and dirty with the law, embedded geometry in a PP2, a 3DS object, and a wavefront OBJect are all different sets of instructions that lead to the creation of very similar meshes, and would all be copyrighted differently. Just like US road maps. Very similar, but each map company has their own copyright on the map, and the results are that each one will tell you how to drive to Pismo Beach as long as you don't take the left turn at Albuquerque.