Originally Posted by Phogg
By the strictest definition it is not.
Because the works in question typically are not copyrighted outside of their country of origin. So no, no harm no foul until such a time as the creators want to pay for the copyright.
Copyright is not (nor should it be) free.
That's the purpose of the International Berne Copyright Convention. It grants people from other countries the same protection in your country that citizens of your country get. So I'm afraid you're incorrect - works are automatically copyrighted in any country which is a signatory to the Berne Convention.