Playing either a DTS-CD or a movie encoded with DTS audio on a system unequipped for DTS will damage the system. Current DVDs are the state of the art in today's television technology, offering the best-quality picture available on modern TV sets. Right now the world is divided into six regions. A player's region code is set by the manufacturer according to where it will be sold. This disc coding cannot be changed by the consumer.
Manufacturers can opt to program a disc to play in any combination of the world's regions.
Some DVD players may have been altered unlawfully by consumers or companies to play DVDs coded for more than one region. A disc's regional coding is listed on its product page. In other regions of the world, similar systems, native to that area, are used. DVD players allow parents to limit what version of a movie the player will show, and manufacturers can code the DVDs to allow playback only on players set to allow that rating level. DVDs that offer multiangle capability will usually indicate this feature on the packaging or in the onscreen menu.