On March 17 anti-piracy officials from China?s National Anti-Piracy and Pornography Office (NAPP) raided a pirated optical disc manufacturing and storage facility in the southern Chinese city of Guangzhou.

In what was the largest anti-piracy haul this year in China, officials seized 1.79 million optical discs, of which 1.64 million are suspected of having been illegal pirated copies of legitimate movie and television titles.

Also seized in the raid were 30 machines used to erase Source Identification (SID) codes that can allow investigators to determine the manufacturer of an optical disc. Officials detained two men believed to be managers of the facility, and are extending their investigation of the illegal operation.

The seized discs were infringing dozens of MPA member company films, as well as every Chinese film released to date this year, and many American, Korean and Japanese animation and television series titles.