while it still doesn't work on psp, i tried ppsspp's save and it also fails with the same error (data is corrupted, 80110306), so at least in this case it also can't handle this game. i went and made fresh savefiles for each version (jpcsp, ppsspp, psp, also jpcsp resaved on psp) to compare. maybe that'll be useful in some way?
one interesting thing is, ppsspp's savefile can't be read at all using magicsave. jpcsp's still load after setting them to sfo 1 or 2, decrypt 3 (any other decrypt value gets garbage values and freezes on load. sfo 3 causes the error message above). ppsspp's seems to load, but the save is read as blank in all sfo/decrypt modes, without the test profiles i set up.
one interesting thing is, ppsspp's savefile can't be read at all using magicsave. jpcsp's still load after setting them to sfo 1 or 2, decrypt 3 (any other decrypt value gets garbage values and freezes on load. sfo 3 causes the error message above). ppsspp's seems to load, but the save is read as blank in all sfo/decrypt modes, without the test profiles i set up.