I have burned the new DVD for linux for education mate edition based on ubuntu 20.04 twice

https://discourse.ubuntu.com/t/li-f-...-out-now/17077

from here

https://sourceforge.net/projects/cyb...se_mirror=svwh

I can't get it to boot or run a live environment. Since I am running xubuntu 20.04 OK what could be the problem? I want to set up several computers for a non profit childrens science group running life. It comes up sometime with the life splash screen and sometimes just won't boot from the DVD at all. Xubuntu 20.04 also boots Ok from DVD live or to install. Alternatively is there a way to install the life from within xubuntu then deleting the xubuntu?