Why Nero CDSpeed must create a Data disc when test a DVD+R?

When use the Nero CDSpeed to test a blank DVD-R, it is no need to create a data disc, but when test a DVD+R disc, it must to create a data disc? If the DVD+R can’t support simulation burning?

Yes, DVD+R does not support simulation burning, DVD-R does.

But what kind of test of a blank disc are you talking about?

> Yes, DVD+R does not support simulation burning, DVD-R does.

Simulation mode has nothing to do with the disc type. Burning a DVD+R
can be simulated like burning any other recordable media, if you can’t
it’s just a limitation of your drive.

Thanks for the clarification, I thought that it is a limitation of the format itself.

Thanks for the clarification!

I know from a few posts that I’ve seen that the NEC’s 3500 can simulate -R but not +R, and all the LiteOn burners can simulate -R but not +R… although I shouldn’t draw a line with just two points, it does make me wonder, why did these drive manufacturers decide to support -R simulation but not +R simulation? Just a random decision? Or is +R simulation somehow inherently more difficult or complicated to implement?

TIA.