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Following the shutdown of Muxtape, a site for posting online mixtapes, in a dispute with the music industry, someone has launched, where you can download code to easily create your own Muxtape-like online mixtapes of MP3 files. And if the creators of Muxtape aren't directly responsible, they probably fed Opentape's developers everything they would need. The first clue is that the site is powered by the favored online publishing platform of millennial hipsters, Tumblr. Another clue is that the domain registration information points to 152 W. 57th Street in Manhattan, which just happens to be IAC CEO Barry Diller's address (Justin Ouellette, Muxtape's founder, worked at IAC site Vimeo). Then there are two small hints in the code:The site uses a package of Javascript, Mootools, which was also used by Muxtape. And in the source code, an HTML comment reading "Liberating taste" appears where an ASCII graphic appears in the Muxtape source code. The launch of Opentape is likely a tactic in Muxtape's fight against the RIAA. It puts the record industry trade organization in the position of having to play whack-a-mole as mixes pop up on numerous clone sites using the open-source software. It also means that Muxtape's backers no longer have to shoulder the site's soaring bandwidth costs.