non self booting games

[zeropippa]

Hi,
i've noticed that my nero can't burn succesfully a non-selfbooting game.
i've burned SF3 W Impact, and Zombie Revenge, after the conversion of the image from .CDI to .NRG.
And Maken x directly from a .BIN whit cuesheet, but the games don't run, whit or whitout Utopia boot disk (1.1).
Any other games i burned with nero run perfectly and they are all self boot.
Should i use CDRWin? Any clue?
thanx from now guys!