I actually went ahead and uninstalled and reinstalled it last night as I mentioned and currently the size is showing 'unavailable'. What I can tell you was it was in the System-Apps&Features window, and the size was 37.1GB and a blue line was under the where it says Camera Bits, noting it relative size allocation on the the hard disk. I have a couple that have very short blue lines, but this on was a 1/3 of the way across.
I'll reboot again and see if the size comes up. Performance wise, the program worked as expected, no complaints, no hangs, so it was a bit odd.
I'll report back to you as I check it through the day.
Thanks Kirk,
Kingsley