So far these are my results :
Ducktales Remastered and Dragon's Crown work just fine
No More Heroes : Heroes Paradise asks me to insert a CD
Catherine seems corrupted by I'm sure I messed up the manipulation at some point.
update : Catherine asks me to insert a CD, guess that I'm missing something on the LIC.EDAT generation
After reinjection, the game gives a.... Black screen ?
Aaaaaaand final post for today : Even if the compat list says so, there's no use injecting game data in the backup. Actually it will prevent your game from booting. I just deleted it and now my game boots fine. Good night y'all