reverting the compressed vmdk

Hi

I am doing a task of creating the ova from disk .

In that process converting the vmdk file to compressed one using the below command.

vmware-vdiskmanager -r test.vmdk -t 5 test-disk1.vmdk

Now i want to revert to the test1-disk1.vmdk  back to test.vmdk  .

Which tool can be help full for me here? . tools i mean  qemu-img with "convert" option or "vmware-vdiskmanager " ?.

thanks

RK