spunk said:
If it works perfectly when logged into the machine instead of RDP, then it is an issue with RDP
CD/DVD-R discs are one time write media.
It may well be RDP but it's on the WIN-10 destination side. As I said before the same disk, on which I don't complete the format operation is writeable with Remote Desktop from the ZBook to WIN-XP and WIN-7. So the problem isn't on the WIN-10 ZBook side. The problem is that the target WIN-10 system for some reason decides that the disk isn't readable for formating.

If the same problem occurred with the WIN-XP and WIN-7 target system I'd agree there's something else wrong.

I'll see if I can turn things around and hang the DVD USB drive on the ZBook and try writing from either the WIN-10 workstation or WIN-7. I'll report back on that later tonight.