Asian pirates are producing counterfeit copies of copyrighted Blu-ray Disc videos. A recent raid on counterfeiters in southern China has prompted the Motion Picture Association of America (MPAA) to warn consumers about counterfeit movies.

Pirates are using software to create imitation Blu-ray disks with a format called AVCHD, which allows both high-definition and standard-definition recording. The format is used in tapeless camcorders that record onto DVD and Blu-ray disks. For high definition, all major variations are supported, including 720p, 1080i and 1080p.

Victims may not be able to tell the difference between real Blu-ray disks and the counterfeit versions.

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