Copyrights should be more like trademarks. Use it or lose it. Put a limit of 10 years if the work is not available for purchase by the general public, so any w

Copyrights should be more like trademarks. Use it or lose it. Put a limit of 10 years if the work is not available for purchase by the general public, so any work that goes out of print becomes public domain 10 years after the last copy was sold. But... Only for works owned by _corporations_. For works still owned by the original artists, works would enter public domain on the artists death or if the artist had under-age children at the moment of their passing, when the youngest completes 18. I think this is the best way to ensure that corpos can't sit on works for eternity while allowing artists to have an income for life, with some protection for their children in case of untimely death. In any case, any law that implements such limitations should mandate a complete removal of any DRM involved, or at least publication of the private keys needed to decrypt any work, once they become public.