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from www.tmz.com - The kingpin of porn has reached out to Hulk Hogan in an effort to entice him to change his mind about the sex tape that has surfaced featuring the famous wrestler.

Steven Hirsch from Vivid Entertainment has sent Hulk a letter, which touts his company's stable of stars who include Kim Kardashian, Kendra Wilkinson, Tommy Lee and Jimi Hendrix.

After we broke the story that Hulk is front and center in a videotaped sexual encounter with a mystery brunette, he was adamant that he had no idea he was being taped and he would go after the people behind the tape both civilly and criminally.

Hirsch tells Hulk in the letter ... he admires what Hulk has accomplished and then says he saw a "teaser" of the tape and believes there would be a "huge demand."

Huge or not ... Hulk and his lawyer could not have been clearer on TMZ Live yesterday ... they don't want that tape to see the light of day.

More: from www.tmz.com - Hulk Hogan just can't seem to identify his female co-star in the sex tape that just surfaced -- telling TMZ, he banged so many chicks after he left his ex-wife ... the woman could be one of MANY possible conquests.

Hulk called in to TMZ Live moments ago ... claiming he went on a 4-month alcohol-fueled lady-screwing bender between the time when he left his ex-wife Linda ... and met his current wife Jennifer.

Hulk tells us, "During that time, I don't even remember people's names, much less girls."

Hulk says he hasn't had sex with another woman since meeting Jennifer 5 years ago -- so the tape has to be at least 5 years old.

Hulk still has no idea who's selling the tape or how that person acquired it -- but Hulk's lawyer says, "If anyone goes forward with this thing, we're gonna find 'em and we're gonna prosecute."