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Message: <blockquote data-quote="thomian" data-source="post: 12665483" data-attributes="member: 357290">720p and 1080p are simply resolutions (1280 x 720) or 1920 x 1080)No matter how low/high the bitrate, they can still be called "HD".  The reason some "HD" looks good and some looks very soft/blocky/etc. depends on the bitrate chosen and whether it is   appropriate for the source.A solid black background with someone talking is going to require less  bitrate than a busy street scene because there is less movement from  frame to frame in the first scenario.  Digital video compression works  by taking frames of video at set intervals and just tracking the  differences from frame A to frame B.  Lots of motions, lots of bitrate  required..little motion..little bitrate required.  So the bitrate requirements from one movie to the next (or even from one scene to the next in the same movie) could vary wildly.  So..without a "standard"..what's a guy to do?  I prefer using constant  quality settings in my applications.  It creates a variable bitrate file  that gives it all it needs in the fast action and throttles it down in  the slower/less complex scenes.<a href="http://forum.videohelp.com/threads/332905-Bitrate-for-true-1080p-or-720p" target="_blank">http://forum.videohelp.com/threads/332905-Bitrate-for-true-1080p-or-720p</a></blockquote>

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