BTW Endsormeans, it is great progress, I have had to make OS images before years ago for really small Linux live creditcard CDs and used ISO which I tweaked in a FOSS virtual environment(cant remember, three letters starts with a K?), but there is an open format now ideal for running virtualized OS installs, OVF; which would give nearly unlimited space.
https://en.wikipedia.org/wiki/Open_V...ization_Format
I know it is standard format for VirtualBox and I have made some whopper big images in that.
Thanks for the work again, don't let my personal inability to use the tool denigrate my appreciation of what you have built.