Stanford Law professor and Creative Commons founder Lawrence Lessig had an opinion piece in the New York Times today worth reading, even if copyright issues aren't your first concern. ("Little Orphan Artworks")
The problem is that there quite a few mature works that are not old enough to be in the public domain but where the intellectual ownership is unknown. But there's no registration and the proposed federal standard -- to make a "diligent effort" to find the owner -- is, in Lessig's opinion, too much of a burden for those who might make use of a work that would other be lost to society. He proposes, within limits, a simplified, inexpensive and competitive registration system. I agree.
This matters for people in church life because so much of our soft culture -- including songs, meditations, graphic images, recordings, sermons, liturgical elements, printed articles and the like -- is of unknown or apocryphal origin. Can it, ought it be used? Or do we just turn a blind eye? An orderly system of rights maintenance makes for good boundaries and better practice.