"It's not a sensible move for the U.S. government to file such complaint," said Tian Lipu, commissioner of the Intellectual Property Office, at a national meeting of IP officials in Nanchang, capital of east China's Jiangxi Province.

By doing so, the United States has ignored the Chinese government's immense efforts and great achievements in strengthening IPR protection and tightening enforcement of its copyright laws, Tian said.

The Bush administration said on Monday it was filing two new trade cases against China over "copyright piracy and restrictions on the sale of American movies, music and books there".