Ortmann told news website Stuff that after a decade of living in New Zealand on bail, the pair had firm roots in the country and were contributing to society through Mega, a legitimate cloud-storage website they set up after their arrest.
“There's absolutely no point in dwelling on these proceedings any longer and we are putting it behind us, and accepting our responsibility," Ortmann said.
Van der Kolk said they had learned from their mistakes.
“We've worked incredibly hard on Mega and we strongly feel that our rehabilitation process has started a long time ago,” he told Stuff.
Lawyers for Dotcom and the other men had long argued that if anybody was guilty in the case, it was the users of the site who chose to pirate material, not the founders. But prosecutors argued the men were the architects of a vast criminal enterprise.
Dotcom and the two other men were once close friends but had a falling out after their arrest and subsequent work on the Mega website.
U.S. prosecutors had earlier dropped their extradition bid against a fourth officer of the company, Finn Batato, who was arrested in New Zealand. Batato returned to Germany where he died from cancer earlier this month.
In 2015, Megaupload computer programmer Andrus Nomm, of Estonia, pleaded guilty in the case to conspiring to commit felony copyright infringement and was sentenced to one year and one day in U.S. federal prison.
Last year, New Zealand’s Supreme Court ruled the trio could be extradited. But the nation's justice minister has yet to make a final decision on whether the extradition — now just of Dotcom — will go ahead.
Even that decision could be appealed and spend still more time in the slow-moving New Zealand legal system.