I know that my videos end up on peer to peer networks, as well as user groups. But for a site (blog or not) to put up copyrighted content is beyond me. They knew it was copyrighted because they show the copyright watermark and they name the site it came from. So for them to say "sorry" is BS.
What i really don't understand is how they make money, if at all. The bandwidth must cost a ton with all of the videos. I have several affiliates who post blogs with short clips of my videos and then send me signups. They make money and everything is kosher. But these guys didn't have any affiliate links. Weird.
I didn't find any of my videos on there, but if i had i wouldn't have bothered writing them. You need to write to their bandwidth supplier and let them know that their customer is violating copyright laws and that, now that they supplier has been notified, they must take action. I've had more than one site shut down doing this. They'll show up again, but it's a major hassle to find another provider with sufficient bandwidth.
And, of course, there's always the threat of lawsuits. If several studios got together and had a single lawyer send a letter to the blogger, he may think twice about continuing to provide stolen porn.