You can configure DVD or CD devices to connect to client devices, host devices, or Datastore ISO files.

To install a guest operating system and its applications on a new virtual machine, you can connect the CD/DVD device to an ISO file that is stored on a datastore accessible to the host.

You can connect a CD/DVD device on the virtual machine to a physical CD or DVD device that resides on the host. This is useful for installing guest operating systems, VMware Tools, or other applications on the virtual machine.

To install a guest operating system and its applications or other media on a virtual machine, you connect the CD/DVD device to a physical DVD or CD device on the system from which you access the vSphere Web Client