[Users] Physical CDROM access

Hi, With VMware ESX, when you edit the CD device you have of course the option of attaching an ISO, but IIRC you also have the option of selecting the physical CDROM device for the Host. There seems no way to do this with oVirt. It would be a really nice addition to the "Change CD" menu to have something like "/dev/cdrom". Is there a technical issue preventing this? Of course that would prevent VM migration such as HA while the CDROM device is attached, but that didn't stop VMware and it would be a valuable addition. Thanks, Bob