Not all save files are created equal. When downloading "Naruto Shippuden Ultimate Ninja 4 Ps2 Save Data," look for these markers of a high-quality file:
Question about save files - Naruto Shippuden: Ultimate Ninja 4 Naruto Shippuden Ultimate Ninja 4 Ps2 Save Data
the Region (NTSC-U, PAL, or NTSC-J) of the save matches your disc. Regional Compatibility Issues Not all save files are created equal