Create Personal GBA Videos:
===========================
You will need to create what ever video file is first into a AVI video,
It is best done at this web site:
https://video.online-convert.com/convert-to-avi
and choose these presets while uploading the video:

Preset: Nintendo 3DS
only other change: set audio to mono.
convert

Then with the METRO software have these settings for small videos (like music videos or commercials):
Bitrate: 256KBS

op: Manual:
    Trim: Manual Resize
        240x160
    Frame rate: 4/5 24fps
    No pre-filter
    Speed not checked.

Use the other GBA software to make video work on official hardware.
Then you got your video!





Sources:
https://gbatemp.net/threads/guide-how-to-convert-youtube-videos-to-game-boy-advance-rom-files.520954/
https://www.gameboy-advance.net/video/
https://video.online-convert.com/convert-to-avi

Date: September 8th, 2021