Customs officers check some of the more than two million pirated video compact discs seized on Thursday. The VCDs and production equipment were worth $110 million. Superintendent Johnny Chow Wing-keung of the Intellectual Property Investigation Bureau said 2.2 million discs - copies of local films - were destined for the mainland. 'We believe many films dubbed in Putonghua are for markets in northern China. This time, no Western movies or new-release local films were found,' Mr Chow said. After receiving a tip-off about a month ago, Customs officers began surveillance of a factory in Hung To Road, Kwun Tong. Discs from the factory were loaded on to the mainland vessel Hung Fat 118 at Tsuen Wan at 3 pm on Thursday. It was stopped by a Customs launch on its way to Huidong, Guangdong, and 500,000 pirated VCDs were found in the engine room. A further 1.7 million discs were found at the factory. Twenty-six people, including 11 mainlanders, were arrested.