Aspect ratios

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== introduction ==

blabla

[edit] software dvd players and DAR

http://www.doom9.org/aspectratios.htm

[edit] specifications

mpeg-1 specs: http://forum.doom9.org/showthread.php?p=685662#post685662 (ISO/IEC 11172 Part 2, Chapter 2.4.3.2 "Sequence header"; pel_aspect_ratio)

mpeg-2 specs: http://forum.doom9.org/showthread.php?p=685658#post685658 (DAR, SAR)

mpeg-2 specs: http://forum.doom9.org/showthread.php?p=685854#post685854 (ISO/IEC 14496 Part 2)

mpeg-4 specs: http://forum.doom9.org/showthread.php?p=686948#post686948 (no SAR)

h264/AVC specs: http://forum.doom9.org/showthread.php?p=686958#post686958 (only SAR)

[edit] ITU standard

http://www.doom9.org/capture/par.html

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