@lempkee
If they use the music copyrights as an example, the copyright last for the life of the artist plus 70 years.
Copyright BasicsIf software is similar, none of use will care when the 1985 version of Elite for the C64 goes public domain in about 2105 :-)
But if they base it on the death date of the company instead of the author, you might cut a few years off and make it available in about 2060 :-P
Plaz
(Disclaimer, My dates are horribly poor estimates and do not represent any thing useful 8-) )