Jojo's Biz. Adv. rgb/scart fix

[GL]

The problem is I don't have the original image (.bin/.cue), but instead found a .cdi image somewhere. Most of you will probably know that the specific patches are restricted to the original images.
Anyone got a clue on how to apply the fix in another way?
I was thinking of using hexedit, maybe the necessary hex info is in the patch. But I can't open the .ppf format.
Maybe only the 1st_read.bin has to be adjusted?

Any help would be greatly aprreciated TIA