DVD? That would mean that they made a pictogram of DeCSS code. And Earth 50,000 years from now wouldn't be able to use it because they would have permission to decode the Content-Scrambling System. Should have picked an open format; then again they probably wouldn't be able to use that either because of patent issues. The future is going to be so bureaucratic that you wouldn't even be able to take a **** without violating a patent and sent to jail for up to 35 years.
Actually, there is nothing wrong with producing it in a format that's patented... by time the message is delivered, the patent will have expired very nearly 50,000 years previously.