Originally Posted by Descadent
oh snap! Let me try that. is it better to upload in 1920x1080 or 3840x720 because my AVIs are actually 3840x720 from dxtory before rendering (because using dxtory at 7680x1440 requires like a hard drive that does 600+ megabytes so I just reduced it to 3840x720)? Black bars going to be there either way. Video may look clearer though.
3840x720 is fine. And I presume you meant 1920x360 on the first number. And yes, the letter boxing will still be there on a 16:9, 21:9, or any other display with an aspect ratio less than 48:9, but it will avoid pillar boxing, like so:
And here it is with the desktop set to 3840x720. No letter boxing.
By uploading only the content area and eliminating baked in letter boxing in the source video, you future proof it against any different aspect ratios.