The author touches on revocation - to me this is a MAJOR problem with "licenced" media. Publishers have shown, again and again, that they will not continue to "

The author touches on revocation - to me this is a MAJOR problem with "licenced" media. Publishers have shown, again and again, that they will not continue to "sell" (distribute) their product. Despite storage and transmission being very cheap, it is almost impossable to find many classic films, music, and books. Aparently it is legitimate can claim a "loss" if they cease to sell an item (presumably having destroyed the master copy). It might make perfect commercial sense to drop low selling items and claim large tax losses, it may be legal, but how is this moral? For classic items, this is nothing less than destroying cultural artifacts. (This is yet another case where modern copyright is out of step with modern morals and expectations. Personally, I'm for short copyright terms, perhaps requiring explicit registration, and requiring licence holders to maintain a copy for historical purposes - perhaps in some kind of escrow at the internet archive.)