Mounting client CD/DVD device to VM using VMRC (VMware Remote Console) fails with following error.
Failed to connect remote device:
Could not open the client device "<Your Device>". Check that the device exists and that it is not being used by another program.
%TEMP%\vmware-<username>\vmware-vmrc-##.log shows following error.
<timestamp> In(05) vmrc SGWIN: Could not get device number for 'D:': Failed to open file using authd (c).
<timestamp> In(05) vmrc CDROM: Failed to process 'D:' : Failed to open file using authd (c)
<timestamp> Wa(03) vmrc REM-CD: failed to open 'D:' : 0
<timestamp> Wa(03) vmrc Unable to open remoteDevice
<timestamp> In(05) vmrc DlgUI: Failed to connect remote device:
<timestamp> In(05)+ vmrc Could not open the client device "D:". Check that the device exists and that it is not being used by another program.
Client machine is connected via RDP.
There are two options for a workaround.
Option 1:
Run VMRC with administrator privilege.
e.g.) Write click vmrc.exe > properties > Compatibility > Check 'Run this program as an administrator'
Option 2:
Operate the client machine directly (not via remote desktop).