Just wanted to help out those who may have ran into similar issues. If you have a game that is incapable of changing language through PS3 menus (Burnout Paradise Pal version as an example).
Follow this and it is should change dialogue and menus back to english. These 3 items need to be modified:
3-GAME_FOLDER (to BCUS98119)
as per instructions below
To unlock other languages (English), you have to change the game ID to BCUS98119.
1 - For this we use an application called PS3SFOEdit, execute the program and open the file inside the folder PS3_GAME \ PARAM.SFO
Then just change where it says Disc Title ID: put BCUS-98119, save the file.
2 - Now open Notepad and changed the PS3_DISC.SFB Disc Title ID for BCUS-98119.
3 - Then just create a folder on an external disk or transfer to internal GAMEZ folder (renamed BCUS98119 like usual)
Let me know if this fixes it. You should be able to apply this to other games as well to get whatever language u want out of them.
I do not take credit for this, Bishoff found it (i believe) anyways. If you take the Disc Title ID and change it (there's a whole list in the eboot file post) from PAL to the NTSC counterpart and in the PS3_DISC.SFB, and the folder directory it will change it to the desired language.
just wanted to help out if someone had this issue and wanted to give back to the community