Here's a little patch to subtitle the Japanese speech in the opening video.
The patch comes with a generic patcher/rebuilder batch so that it can be applied to a game patched with other hacks as well.
v1.1 Changes:
*Corrected the subtitled frames being always one frame ahead
*Added a small footer with empty sectors to the output image to fix the PSP/Vita compatibility
*Xdelta patch now targets a file sourced from a clean image, checksum verification was also disabled just in case
Breath of Fire IV (US, SLUS-01324)