A Swedish court has convicted the four men behind The Pirate Bay to a year in jail and a fine of $4.5 million.
Record companies welcomed the verdict but the men are to appeal and Sunde said they would refuse to pay the fine.
Speaking at an online press conference, he described the verdict as "bizarre".
"It's serious to actually be found guilty and get jail time. It's really serious. And that's a bit weird," Sunde said.
"It's so bizarre that we were convicted at all and it's even more bizarre that we were [convicted] as a team. The court said we were organised. I can't get Gottfrid out of bed in the morning. If you're going to convict us, convict us of disorganised crime.
"We can't pay and we wouldn't pay. Even if I had the money I would rather burn everything I owned, and I wouldn't even give them the ashes."