illegal music downloads, who is talking care of it???

I own a digital media company and provide a central repository
of entertainment contents to distributors, typically network
operators, portals and customized applications. Mostly I have
digital representation rights which are exclusive in nature. These
rights encompasses every thing like ring tones, audio and video
on internet and mobile.

We have implemented DRM in a lot of environments. However, I
can still find people hosting my songs, ringtones an videos on
there websites and I feel really frustrated. It is getting lesser and
lesser as days pass by. But when ever I get a hot content, I then
see the real color of the world.

Can any one help me in this.