The following document conveys the full project and bibliography about how to translate a PSP game from scratch:
[Includes guides for GIM/MIG image files]
RHP link to the PDF version:
https://romhackplaza.org/documents/romh ... sp_basics/
GitHub link to the full project (including tools and explanations):
https://github.com/Bunkai9448/digipet_PSP
Warning:
This game was developed using the criware software for a few structured sections, other games won't necessarily use this tool. However, everything else applies and all methods are reasoned so you can find your way to do it in any project.
Extra:
For those who want to learn how to mod the PSP NHL07 (or other EA game from that year), you can check this GitHub with guides and tools' links:
https://github.com/Bunkai9448/NHL-07_public
(it includes some nice ASM files with comments about how to read a hex file to understand its header and contents, go for the audio folders for that).
Extra 2:
If you want to edit a PMF video, you can check a working guide here:
https://github.com/Bunkai9448/NHL-07_pu ... /Video-pmf