Regions for the Blu-ray standard:
A/1: The Americas, and their dependencies, East Asia (except China and Mongolia), and Southeast Asia. B/2: Africa, Middle East, Southwest Asia, Europe (except Belarus, Russia and Ukraine), Australia, New Zealand, and their dependencies. C/3: Central Asia, East Asia (China and Mongolia only), South Asia, Eastern Europe, and their dependencies.
As with the implementation of region codes for DVDs, Blu-ray Disc players sold in a specific geographical region are designed to play only discs authorized by the content provider for that region. This is intended to permit content providers (motion picture studios, etc.) the ability to support product differences in content, price, release date, etc., by region. According to the Blu-ray Disc Association, "all Blu-ray Disc players...(and) Blu-ray Disc-equipped computer systems are required to support regional coding." However, "Use of region playback codes is optional for content providers..." Some current estimates suggest 70% of available Blu-ray Discs from the major studios are region-code-free and can therefore be played on any Blu-ray Disc player, in any region.
Movie studios have different region coding policies. Among major U.S. studios, Paramount Pictures and Universal Studios have released all of their titles region-free. Sony Pictures and Warner Bros. have released most of their titles region-free. Lionsgate and Walt Disney Pictures have released a mix of region-free and region-coded titles. 20th Century Fox and MGM have released most of their titles region-coded.
The Blu-ray Disc region coding scheme divides the world into 3 regions, labeled A, B, and C.
* Region A includes most North, Central and South American and Southeast Asian countries plus Taiwan, Hong Kong, Japan and Korea.
* Region B includes most European, African and southwest Asian countries plus Australia and New Zealand.
* Region C contains the remaining central and south Asian countries, as well as China and Russia.
In circumvention of region coding restrictions, stand-alone Blu-ray Disc players are sometimes modified by third parties to allow for playback of Blu-ray Discs (and DVDs) with any region code. Instructions ('hacks') describing how to reset the Blu-ray region counter of computer player applications to make them multi-region indefinitely are also regularly posted to video enthusiast websites and forums. Unlike DVD region codes, Blu-ray region codes are verified only by the player software, not by the optical drive's firmware.
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