[MoBiUs]

copy the files on the disc to your hard drive, then using notepad edited the top line of the SYSTEM.CNF to read

BOOT2 = cdrom0:\I5BOOTN.ELF;1

Then rebuilt the ISO in nero or another program in no particular order and making sure to rename it to the original name of disc.

Dump it using HDL_DUMP(or another program) and using I5BOOTN.ELF as the Disc ID (Instead of SLES/SLUS/SCES_XXXXX)

Try loading it with all modes OFF if nothing then try with All modes and so on