I followed the instructions step-by-step and it doesn't work, all the 198 files give errors.
The bat gives this for every file:
D:\puyo english>"xdelta3.exe" -d -vfs original\eboot.bin patch\198.vcdiff Repatch\PCSG00224\eboot.bin
xdelta3: source original\eboot.bin source size 1.25 MiB [1307056]...