: This usually means the ISO was patched incorrectly. Re-verify your source ISO (it should be the Japanese version) and try patching again.
If you are a collector, use these search terms to find help: berserk ps2 iso english
memory card can play the ISO directly on original hardware via tools like Open PS2 Loader (OPL) [5.2, 5.5]. Hard-Modded PS2: : This usually means the ISO was patched incorrectly
: Many community sites like CDRomance or Archive.org host "English Patched" ISOs, which save you the step of manual patching. Why This Version is a "Gem" berserk ps2 iso english
Download a program called Delta Patcher (or the command-line XDeltaUI).