I'm sure everyone's familiar with the 2 live crew case (Campbell V. Acuff-Rose Music) where the Supreme Court decided that 2 live's "parodic" version of "Oh Pretty Woman" did not infringe upon the copyright of the original work. The finding rather refutes the claim that one cannot substantially change a copyrighted work without the copyright holder's permission. In fact, according to the decision, "The more transformative the new work, the less will be the significance of other factors, like commercialism, that may weigh against a finding of fair use. " Not saying that this has too much to do with our current argument of whether the DT could be clear under the fair use clause, just trying to set the record straight.