IsoHunt, a popular website offering BitTorrents of mostly pirated material, is to shut down following a court settlement.
The site's owner, Canadian Gary Fung, has agreed to pay $110m (£68m) to the Motion Picture Association of America (MPAA).
MPAA chairman Chris Dodd said the move was a "major step forward" for legitimate commerce online.
In a blog post, Mr Fung said: "It's sad to see my baby go."
The site is currently still online, but will soon be shut. It is one of the most popular sites of its kind on the internet.
A group of companies, including Disney, Paramount and Twentieth Century Fox, accused the site of wilfully infringing copyright by listing millions of popular movies and TV programmes - in a court battle that has lasted for more than seven years.
Now Mr Fung has agreed to settle. He added: "I have fought the good fight, I have finished the race and I have remained faithful. 10.5 years of IsoHunt has been a long journey by any business definition and forever in internet start-up time.
"It started as a programming hobby in my university days that has become so, so much more."
Court documents acknowledged that it is unlikely that Mr Fung's company could pay $110m, and that the MPAA would probably receive between $2m and $4m.