Why cd-dvd speed not show full list?

Hi all,

I have a problem on CD-DVD speed 4.

Nero buringRom show my full ODD list including external writers but
CD-DVD speed and Nero infotool does not show external writers.
They only show the internal writers.

What’s the problem ?

help me please.

Just a guess - are you doing a DVD project? it is possible for it to show only the devices where it can record, and if the project is DVD, it is logical not to show the CD-R and DVD-R devices. Also, if you have a non-recordable media in the other devices, that can also lead to such a result.