That's not wholly true though, is it? Even beyond the objections that Zvi posted below (above?) about older stories, even current writers may just not respond. I asked for permission to record an SPN/J2 big Bang story from 2008, I think, so not horribly old last summer. As far as I remember I used all contact info I could find and have yet to hear a response.

I'm not sure how to handle these situations. I sometimes wonder if reasonable objection right might be the way to go. If you have any issues or don't want me to do this I will certainly respect them; otherwise I assume your tacit permission?