Things You'll Need
Instructions
Insert the GBA Movie Player software CD into your computer and follow the onscreen prompts to install the necessary software.
Start the "Conversion Wizard" software. Specify the movie file you wish to convert to GBA format. Movie files should be in "MOV" or "AVI" format for maximum compatibility.
Check "Standard" to convert your movie in normal quality. If you're not happy with the quality of this setting, you can experiment with higher quality conversion settings later.
Specify the directory for your movie to be output to and click "Convert."
Insert your MicroSD card into the reader and connect it to your computer via USB.
Use Windows Explorer to copy your converted movies onto your MicroSD card, then eject and remove the card.
Insert your MicroSD card into the MicroSD slot of your GBA Movie Player device. Insert this device into the cartridge slot of your Game Boy Micro.
Turn on your Game Boy Micro and select "Movies." Use the D-pad to select the video file you wish to watch and start playback with the "A" button.