Burning question

I use Nero Burning Rom for my video burns & cdspeed (burn a data disc) for checking the quality of blank media I am using.
I have found on a number of occasions after a video burn that checking the quality of that burn in cdspeed gives very different results to the cdspeed burn.
Does anyone know what is going on?

What kind of results are you getting?

Sorry for the delay in replying.
the 2 Verbatim 8x discs below were done on the same burner using the same firmware @ 4X speed. One was done in cdspeed (create a data disc) the other Nero Burning Rom ( selecting DVD-video format.



Hope these links work as I have them posted elsewere I can not add them as attachments

You are using different media for each test. MCC002 and MCC003 are different media ID types. This may be the reason you are getting different results.