windows 10 does not discover DVD device
This drive that plugs into USB does not appear in Device manager but as a separate line item
-Initio Combo Device Class
Initio Default Controller
also, there is no entry under the "USB Bus controllers" list.
To correct that:
De-activate and desinstall the "Initio Default Controller" and the drivers.
Unplug the DVD from the USB port - then power off the PC.
Plug the DVD - and restart the PC.
It should be OK now. It is present in Windows explorer with a drive letter.
In the device manager:
there is now an entry for Mass storage controller under the "USB bus controllers" list,
and a new line item for device "DVD/CD-ROM readers"