Widescreen is the same height as 4:3 and this makes it easier to scale from one to the other.

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Hi John, thank you for your reply. I guess what I am having trouble wrapping my tired brain around, is that the old 10x5.63 16:9 is the same width as 4:3. They are both 10inches wide. So we have two scenarios when scaling from 4:3 to 16:9:

A. Scale to a size which is the same height (from 4:3 to Widescreen 16:9)

B. Scale to a size which is the same width (from 4:3 to On-Screen Show 16:9)

What makes scenario A easier than scenario B? Both scenarios involve some scaling, just a different kind of scaling.

(Maybe I am just overthinking it, and need to let it go, and just go with it? I just like to understand why things are done a certain way, or why Microsoft recommends doing things a certain way)

Anyway thanks again!