Does Transfer of MPEG Video Infringe on Acacia Patents?

Spooky Suicide asks: "I own a slightly naughty website that among other things makes 20 some odd videos available for download in MPEG2 and MPEG4 format. I recently received a written letter from Acacia Research telling me my delivery of video is infringing upon some of their patents and I must choose between either licensing their technology or settling this issue in court. I called the EFF who told me they don't specialize in patent issues and don't know what to do next. Obviously, if all video on the web infringes on their patent, you'd think they'd go after the big guys, but they seem to be going after little content providers who can't afford to fight them in court. I can't help but feel like I'm being shaken down by the hi-tech version of Tony Soprano, what should I do? Anyone else dealt with these guys or no of any group of people grouping together to fight this?"