About that Virus thingie: Just forget that.
Why don't you sue one big forum for violencing your copyrights? For every country one.
WTF and why don't get the DC's get sued too if they get an DMCA which is ignored...lets say three times? They host that shit.
A thought too: Give your advertisers HD Videos, about 3 mins lenght
EXAMPLE:
http://www.mypornow.com/1389/rocco-s-pov-volume-05/
Who will click on the banner below? The preview Quality is a kind of sh*t.