LBA value

:confused: Is Necessary to change the LBA Value in System.clf and mcloader.elf files of RealityMP?...

Only if the original values do not work fo you. I have never had a problem with the original values.

It's a good rule to make ALL cd images so that SYSTEM.CNF is at LBA 12231, FIRST, followed next by the .ELF file it specifies.