A summary based on what I've read elsewhere:<p>rtmpdump is a stream recorder that can save videos streamed by Adobe Flash's RTMP protocol<p>Adobe has a more "secure" version of that called RTMPE<p>surprise! it's not really secure. Analysis: <a href="http://lkcl.net/rtmp/RTMPE.txt" rel="nofollow">http://lkcl.net/rtmp/RTMPE.txt</a><p>Quote: "the Adobe RTMPE algorithm tries to provide end-to-end
secrecy in exactly the same way that SSL provides end-to-end secrecy,
but the algorithm is subject to man-in-the-middle attacks, provides no
security, relies on publicly obtainable information and the algorithm
itself to obfuscate the content, and uses no authentication of any kind."<p>So the DMCA anti-circumvention provision makes this software illegal in the US, even though the "protection" that has been circumvented is laughable.<p>Apparently that could be a basis for a challenge, i.e. nothing has been circumvented as there is no protection there in the first place.<p>(Odd note: the examples of content that could be infringed are shows on a British channel. As far as I'm aware this software is legal in the UK)