<P> Also, the copyright in a title may be held by different entities in different territories . Region coding enables copyright holders to (attempt to) prevent a DVD from a region from which they do not derive royalties from being played on a DVD player inside their region . Region coding attempts to dissuade importing of DVDs from one region into another . </P> <P> DVDs are also formatted for use on two conflicting regional television systems: 480i / 60 Hz and 576i / 50 Hz, which in analog contexts are often referred to as 525 / 60 (NTSC) and 625 / 50 (PAL / SECAM) respectively . Strictly speaking, PAL and SECAM are analog color television signal formats which have no relevance in the digital domain (as evident in the conflation of PAL and SECAM, which are actually two distinct analog color systems). However, the DVD system was originally designed to encode the information necessary to reproduce signals in these formats, and the terms continue to be used (incorrectly) as a method of identifying refresh rates and vertical resolution . However, an "NTSC", "PAL" or "SECAM" DVD player that has one or more analog composite video output (baseband or modulated) will only produce NTSC, PAL or SECAM signals, respectively, from those outputs, and may only play DVDs identified with the corresponding format . </P> <P> NTSC is the analog TV format historically associated with the United States, Canada, Japan, South Korea, Mexico, Philippines, Taiwan, and other countries . PAL is the analog color TV format historically associated with most of Europe, most of Africa, China, India, Australia, New Zealand, Israel, North Korea, and other countries (plus Brazil, which uses the refresh rate and resolution commonly associated with NTSC). SECAM, a format associated with French - speaking Europe, while using the same resolution and refresh rate as PAL, is a distinct format which uses a very different system of color encoding . Some DVD players can only play discs identified as NTSC, PAL or SECAM, while others can play multiple standards . </P> <P> In general, it is easier for consumers in PAL / SECAM countries to view NTSC DVDs than vice versa . Almost all DVD players sold in PAL / SECAM countries are capable of playing both kinds of discs, and most modern PAL TVs can handle the converted signal . NTSC discs may be output from a PAL DVD player in three different ways: </P>

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