You might need to purchase certain software to do the actual conversion. Disclamer.ISO to.VMDK converter is provided to give you some guidence about how to convert files from.ISO to.VMDK.
There's ways to mount a VMDK directly - vmware discmount comes to mind as does its linux counterpart, or you can convert it to quite a few formats with qemu-img programme. An ISO is a disk image of a CD specifically, and the VMDK is one of a hard drive.
