Why would movies be such a popular illegitimate download? It doesn't take much time comparing the ease of finding a new song on iTunes with your odds of locating a new movie on Amazon or Netflix to realize that the commercial online availability of movies lags woefully behind that of music. Between the wait for a new film to appear online—and the self-defeating "release window" system that requires it to be taken offline on an arbitrary schedule—getting an honest movie rental or purchase over the Internet remains frustrating.