Strange "license check failed"

[SoSnake]

I was playing Final Fantasy IX CD3 and when I started CD4 after changing disk fpse said "license check failed" and it's not able to start the cd.
So I tried to start cd4 from the main menu after reopening fpse and it says the same thing, then I tried to load another game (MGS) and it loads.
So it seems the problem involves only FF9 CD4, please fix the problem

[SoSnake]

Problem solved, it didn't work when the option "fast boot" was set "on" (only the first time when you load cd4, then you can rechoose the option).