Well, there are the folks who announced C&Ds...
...to Apple and several other companies, claiming that [link|http://arstechnica.com/news.ars/post/20070511-company-targets-apple-microsoft-and-others-for-not-using-enough-drm.html|offering media-player software which can play unencumbered tracks is trafficking in circumvention].
\r\n\r\nAnd let's not forget that Internet radio royalties in the US are required to be paid to an RIAA-backed royalty-gathering group, regardless of who holds the rights to the music broadcast, and that collecting said royalties from said group requires the actual rightsholder to pay membership fees. Some days it seems like there's no way around these guys...
