From the comments:
Regarding "the cost of DRM schemes", and also because it's something you seem like you'd be interested in, you might like this link from Planet Debian, both for what it says and for what it links to: http://kitenet.net/~joey/blog/entry/copyright-2006-01-28-06-50.html

Also: might you consider publishing your email address somewhere so that people can write you such things without signing up for a Blogger account?
Ethan

I turned on required Blogger registration some months ago in response to massive comment spam. It's worked well, so until Blogger gets a captcha-based solution I'm going to keep it on.
However, e-mail me at a b f r i e d m a n @ g m a i l . c o m and I will write you back or post it or whatnot.
Best,
Ari