1. Before you start...You'll need to have set up Reloaded II & the Persona 4 Mod Loader; see MadMax1960's tutorial on getting started with modding here!
It also appears that not having Hotfix_01a can sometimes make the game skip the cutscene or stutter terribly, so be sure to set that up if you're having any problems getting it to work!
1. Choosing what video cut-scene to replaceAll of the video cut-scenes in the game are stored in .pac files, that being movie00000, movie00001, and movie00002. Find the video you want to replace down below, and follow the steps after that accordingly. That being said, these are ALL of the cutscenes, which means that if you haven't finished the game yet, continue at your own risk.
p4ct001 : Igor welcomes you to the Velvet Room for the first time (Japanese)
p4ct001_c : Igor welcomes you to the Velvet Room for the first time (Chinese)
p4ct001_e : Igor welcomes you to the Velvet Room for the first time (English)
p4ct001_k : Igor welcomes you to the Velvet Room for the first time (Korean)
p4ct002 : Rise's "Quelorie Magic" commerical, Yu boards the train and arrives in Inaba
p4ct003 : Yu sticks his hand in the TV for the first time
p4ct004 : Yu, Chie, and Yosuke fall into the TV for the first time
p4ct005 : First Shadow Encounter; Yu awakens his persona
p4ct006 : Shadow Yosuke transforms
p4ct007 : Shadow Yukiko's "I'm gonna go score myself a hot stud" midnight channel show
p4ct008 : Teddie takes off his bear suit
p4ct009 : Namatame mumbling to himself about saving people in front of the TV
p4ct010 : Dojima & Namatame car chase scene
p4ct011 : Namatame merges with shadows
p4ct012 : Bad ending train departure
p4ct013 : 0 seconds of black screen?
p4ct014 : Adachi transforming into Ameno-Sagiri
p4ct015 : The investigation team confronts Izanami
p4ct016 : Post-Izanami scene; "World inside people's hearts"
p4ct017 : Regular Ending Credits (Japanese)
p4ct017_e : Regular Ending Credits (English)
p4ct018 : The friends talk after Yu leaves; Teddie speech; Yu looks at the photograph they took
p4ct019 : Saki death reveal
p4ct020 : Morooka death reveal
p4ct031 : Fireworks festival
p4ct032 : Driving to the beach scene
p4ct033 : Girls at the Amagi Inn hot springs
p4ct034 : Happy New Year with friends
p4ct035 : Ski resort scene
p4ct036 : Margaret grabs Chie into TV; Hollow Forest intro
p4ct037 : Hot springs with Marie; Teddie and Yosuke destroy the barrier
p4ct038 : Accomplice ending cutscene
p4ct039 : Timeskip sushi reunion
p4ct040 : Junes Concert
p4ct041 : The friends talk after Yu leaves; Teddie speech; Yu looks at the photograph they took
p4ct042 : Golden True Ending credits (Japanese)
p4ct042_e : Golden True Ending credits (English)
p4ct043 : Yu Leaves (Used for Golden Ending)
p4ctop1 : Original PS2 Opening
p4ctop3 : Persona 4 "The" Golden Opening (Japanese)
p4ctop3_e : Persona 4 Golden Opening (English)
2. Obtaining your video // Video RequirementsSo you'll obviously need a video to replace the opening video. The video NEEDS to be 1080p, and if it's any lower (I'm not sure about what happens if it's a higher quality), it'll result in this really weird crossed-eyes effect that kinda ruins the video. The video also has to be in the .wmv file format, so you'll need to convert your video into a .wmv using one of the many websites available that do so, or a video program that allows you to export to a .wmv.
3. Putting your video into the gameFor the sake of this tutorial, we'll be replacing the English Golden opening cutscene. If you're changing a different one, change the folder name and the file name to that of the one you want to replace from the list above.
Navigate to your
\Steam\steamapps\common\Day OR Persona 4 Goldenfolder and then open your mods folder. Create a folder named "movie00002" and then drag and drop your .wmv video inside. Rename the video "p4ctop3_e" and then change the file extension from ".wmv" to ".usm"