Found a great utility for bootable flash drives - Rufus
Finally took the plunge to make my first bootable usb flash drive. Googling found a program called Rufus. It claims to be faster than other programs like UNetbootin, and it was quick, and easy, putting Linux Mint onto a flash drive. And it's open source. No more faffing about with floppy drives for flashing bios now, or even most installs. It's far faster than burning a disk.