Nero discspeed simulae and burn image have different result?

Hey guys

I am using nero disc speed to create a disc using dvd dl+r media, when i only choice burn image, the burning result is really bad, however when i choice both icon of simulate and burn image. The result is superb. Can anyone tell me why is that?

P.S i am using same brand and same media MID code.

Regards

When you check the “Simulate” checkbox, the disc is not burned at all - the drive just goes through a simulated burn with the laser power turned down.

Perhaps you should explain exactly how you arrive at the conclusion of whether your burn is good or bad?