A retiring teacher at the school I work for just gave me two boxes of audiotape books she copied. I know I can't add them to my Bookshelf, but can I make a post in the Book Bazaar about them, perhaps offer a deal on them? I'm not quite sure if there's a copyright problem.

You cannot trade copies of cassette tapes, CDs, DVDs, or books. That is a major copyright problem. Only the originals can be traded.

That's what I thought.

You could erase the tapes and sell them as blanks. I heard there is quite the marked for blank cassette tapes in good working order.

And no you cannot give away copied audio books.