Appreciated. I mistakenly followed some old posts (and needed a second cup of coffee!). I tried the "Compact" command under Utilities but it took a long time and stopped with an error (which I failed to record).
Basically, I need to reduce the size of the VM on the host system from 73G to less than 32G so I can place it on a stick. There's less than 30G needed so it should be easy but I cannot figure how to reduce it. Is there a way to write the VM's Hard Drive out and then recreate a new VM that is smaller.