How to get a edited ps1 game to work?

[hardstyler666]

Well, this is my problem. I've bought the Final fantasy 9 ntsc version. It play's perfectly on my ps2.
But i'm From europe and have a PAL ps2. Now the game play's well but only the movies are also in ntsc format. And when my ps2 play's the movies the sound is really bad. So I've also downloaden a final fantasy 9 pal german version and with this version the movies play's perfectly.

But i don't understand german :(

So i want to copy the .STR files of my pal german version to my ntsc english version. And after that use a ntsc to pal utility to make the game fully pal. (info: the ntsc to pal utility's dont make the STR files pal. That's why i need to copy them from my pal german version)

So now my problem. I use the program ultraISO. When i edit my ff9 image file, and after that save it again the image lost some boot data i think and when i burn it, it won't boot in my ps2. Even if I just open my ff9 image and don't touch anything at all and after that save it again and burn again it will still don't boot.

So is there any way to edit my ff9 image and after that make it booteble in my ps2?????

Thanks allready