China said on Friday it complied with most measures at issue in an international trade ruling made against its restrictions on copyright-intensive goods such as books and music.

China's statement made in Geneva at the World Trade Organization (WTO) headquarters came six days after a deadline to comply with the WTO ruling elapsed, and follows a sharp words on the subject from complainant the United States, with which China is involved in a series of WTO trade disputes.

The United States says China's restrictions on goods such as books, newspapers, films, DVDs and music create demand for pirated goods.

China lost a WTO appellate body ruling in December 2009 and agreed with the United States that it would implement the decision by March 19, 2011.

China said the dispute was embodied with more complexity and sensitivity than other disputes.

China made tremendous efforts to implement the DSB's rulings and recommendations and so far has completed amendments to most measures at issue, it said, referring to the WTO's dispute settlement body.

The United States repeated that it was troubled by the lack of progress made.

(Reporting by Andrew Callus)