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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. [9]
Some DVD players (usually lesser known brands) include an internal transcoder and the signal can be output in NTSC-M, with some video quality loss due to the standard conversion from a 625/50 PAL DVD to the NTSC-M 525/60 output format. A few DVD players sold in Argentina, Paraguay and Uruguay also allow a signal output of NTSC-M, PAL, or PAL-N.
DVD recorders can use DVD-VR or DVD+VR format instead of DVD-Video. DVD-VR format store multiplexed audiovisual content in VRO containers. [37] [38] VRO file is an equivalent to a collection of DVD-Video VOB files. [39] Fragmented VRO files are not widely supported by hardware or software players and video editing software. [37]
Well, the 34th DVD Forum Steering Committee meeting occurred two days ago in Seattle, but it wasn't just the usual hum drum logo approvals and plans for world living room domination. This time ...
576p is considered standard definition for PAL regions. It can be transported by both major digital television formats ( ATSC and DVB ) and on DVD-Video (if limited to 25 fps). It is defined as a valid enhanced-definition television resolution in the SMPTE standard 344M . [ 5 ]
The 576i video format can be transported by major digital television formats, ATSC, DVB and ISDB, and on DVD, and it supports aspect ratios of standard 4:3 and anamorphic 16:9. Progressive sources [ edit ]
On HD DVD, DD+ is used to encode all channels (up to 7.1), and no legacy DD track is required since all HD DVD players are required to decode DD+. ^ e On PAL DVDs, 24 frame per second content is stored as 50 interlaced frames per second and gets replayed 4% faster. This process can be reversed to retrieve the original 24 frame per second content.
Some DVD specifications (e.g. for DVD-Video) are not publicly available and can be obtained only from the DVD Format/Logo Licensing Corporation (DVD FLLC) for a fee of US$5000. [55] [56] Every subscriber must sign a non-disclosure agreement as certain information on the DVD Books is proprietary and confidential. [55]