Formatfactory

I have FormatFactory and it works good.

But I just have one thing I need help with?

I can convert any Video File to any other Video File and use all the settings.

But one of the settings in FormatFactory is Aspect Ratio.
And yes I know this is for how you want it to Play and Display.

You can pick 16:9 or 4:3 and all diferant ones.

But say I have 2. Video Files with 2. Diferant Ratios.
One File is 4:3 and the other File is 16:9 and when I conver them I want them both to stay as is.

Do I pick Default from the Ratio list is this what this is for?

Thanks for the time.