Gracias por las respuestas.
Pero como digo, lo he leido en muchisimos sitios, aqui un ejemplo.
The disc jitter feature was fixed in 1.4...
An SS always contains the disc angle which is usually 0-359° this value was randomly changed by the firmware however when the original setting in the backup was 359° or even 360° the firmware was not resetting it to 0° so it was possible that the drive returned an angle that was bigger than 359° which microsoft could have used as a method to determine if a console was modified...
the new iXtreme 1.4 resets it to 0° if the value is higher than 359° so even backups with the "Kreon-bug" will be save
Un saludo