Things You'll Need
Instructions
Download and install the Total Video Converter (see link in Resources). This software will allow you to convert MP4 files into PSP MP4 files. Upload the MP4 file you are trying to convert. To do this, click "Browse" and choose the file from your computer.
Choose an output video profile. Click "Edit" and there will be a menu with various output profiles. For this conversion, choose "PSP MP4."
Rename the video file and choose a location where you would like to save the file. Click "Browse" and choose a location on your computer. Click "Convert" to complete the conversion. You will now be able to play your file on your PSP.