Kim Dotcom's estranged wife has filed papers in the US, staking her claim over 23 million dollars worth of the internet mogul's assets.

The items were seized in raids on the Dotcom mansion, carried out at the FBI's request as part of its copyright case against Dotcom.

Mona Dotcom says she's entitled to half of the goods which include cars, jetskis, 108-inch TV sets and 10 million dollars worth of government bonds.