asus drw-24f1mt only 8x and 16x speed to select, I need to burn at 4x or else is getting errors, is there any other way to modify the firmware to burn slowly ? I can't find the firmware for asus drw-24f1mt in anywhere! I've tried 3 brands already and got errors because the only speed to burn is 8x or 16x and this is too fast! is there any way to modify this ? even If I have to modify the firmware in this case, my priority is to burn at 4x no matter what, I've tried many softwares but this doesn't matter the only speeds avaialble are 8x and 16x, is there any possible solution for this ? thanks.