On or around Tue, 14 Nov 2006 20:35:45 -0000, "IanL" enlightened us thusly:
yes, some of us are aware - and I think you'll find that you are allowed to lend books. The full copyright statement says something along the lines of "in any form of binding or cover other than the one it was originally sold in and without a similar condition including this condition", in other words, if you give it to someone else it's still copyright.
software is a different issue, although the restriction there is on use: if I uninstall software from all my computers and then pass the original media to someone else, they can I think use it legitimately. The rules are against copying it and thereby dodging the royalties. I assume the same applies to films - they're licensed for private use but provided you haven't duplicated the DVD you don't do anyone out of royalties simply by giving it to someone else.
However, Glass's do IIRC specifically forbid reselling it. Not sure about giving it away free.