[germanier]

To make this more complicated, in Germany copyright is not transferable at all. The best you can do is assign exclusive rights to someone else (doing that correctly is non-trivial). Even worse: There are some rights that belong to the creator alone and they cannot give them away.

[slfront]

Yeah, international copyright law is a damned bomb crater. It's nothing but devastation and wreckage, and threat of imminent demise.