I always use rufus Rufus - Create bootable USB drives the easy way
Bubblegum thanks for response.
I find the 'LibreELEC.USB-SD.Creator.Win32' very easy to use, just run it, choose/browse to file to burn and press write, less than a minute finished.
This has worked successfully when I created LibreELEC USB USB for my S905X, so don't know why same process, same USB isn't working for my Minix X8H+
Took a look at Rufus,
Which of three partition scheme and target system type do I choose?
Which of four file systems do I choose?
Which of three cluster sizes do I choose?
Not knowing the answers to above questions is why I used the SD/USB creator as all it asks is which file do you want to use to burn my USB.