Sharing to 1440x1080 or 1920x1080

[Svein Berger]

I need to export a small project to MPEG files. I see that I have two options 1440x1080 and 1920x1080.

When I tried both options and viewed it with Windows Media Player I can not see any difference.
The file with 1920x1080 was even smaller than the 1440x1080 file. (Even though it was only 0.6mb)

Can someone clarify, please.

[Bob]

1440x1080i uses rectangular pixels while 1920x1080i uses square pixels. They both will display the same size in a 16:9 video frame. The 1920x1080i will potentially have a little higher horizontal resolution, but it will be difficult to see the difference. If I were exporting this for viewing on a computer, I'd choose the one with square pixels -- 1920x1080i.

[Svein Berger]

Thank you for the clarification Bob. Now I understand.