I’ve said before that only the music industry would sue its customers to force them to buy their products. In another spin on that, CNet reports that “A California company that makes technology designed to prevent ripping of digital audio streams has accused Apple, Microsoft, RealNetworks and Adobe Systems of violating federal copyright law by “actively avoiding” use of its products”
The gist is that the US DMCA makes it illegal to circumvent technological protection measures that control access to copyrighted works. This company makes technology designed to prevent anauthorized copying. So their logic is that if a business that supplies/enables digital media does not buy their product, it must be violating the DMCA.