I was thinking about the recent DMCA rulemaking in the US, which led me to this "simple guide to copyright".
You can legally do pretty much anything you like with your own property,
unless it's a "fixation" of a copyrighted work and what you want do is a right granted to the rightsholder,
unless it's covered by one of the "fair dealing" exceptions.
That's not too bad. Of course, in the US, or in Canada if C-32 passes as-is, you need to add a couple more lines:
