Can you check if the drive is added to shared folder? Virtual Machine>Settings>Sharing.
Also, Fusion has it's own generic NEC driver see the CD/DVD drive but you just need to ensure that CD/DVD drive is always connected mac side not to Windows side when prompted and then go to Virtual Machine>settings>CD/DVD drive and then turn it on.
Note:- In this case Fusion will think that your Mac has an inbuilt cd/dvd drive.
Hope this helps.