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Rendering, Variable or Constant?

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Ross Stark
Rendering, Variable or Constant?
on Nov 6, 2015 at 1:32:48 am

When you guys are rendering files to MPG format for DVD authoring, do you use Constant or Variable bit rates? Why?

I was having some issues with herky-jerky footage once it reached DVD. I swapped several things around and finally landed on this: I had been rendering in Constant Bit Rate. I swapped to Variable Bit Rate and the problem solved itself.


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John Rofrano
Re: Rendering, Variable or Constant?
on Nov 6, 2015 at 11:00:01 am

[Ross Stark] "When you guys are rendering files to MPG format for DVD authoring, do you use Constant or Variable bit rates? Why?"
You can use Constant bit rate for short videos that will fit at that high bit rate. You should use Variable when you need to fit more video at a lower average but with higher peaks.
[Ross Stark] "I was having some issues with herky-jerky footage once it reached DVD. I swapped several things around and finally landed on this: I had been rendering in Constant Bit Rate. I swapped to Variable Bit Rate and the problem solved itself."
If you are having quality problems with variable bit rate, turn on the Two Pass option. This will give you better quality at the same bit rate.

~jr

http://www.johnrofrano.com
http://www.vasst.com



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