They wouldn't be orphan if we knew who holds the corresponding rights. Selling the liquidated estates could help with certain out of commerce works, but I wonde

They wouldn't be orphan if we knew who holds the corresponding rights. Selling the liquidated estates could help with certain out of commerce works, but I wonder how many such cases exists. Usually other publishers buy the catalogue just to keep it quiet and reduce the competition, even if they have no intention to reprint anything.