Fbinst is a USB Flash Drive Formatting tool.It can create universal bootable USB Flash Drives which can be booted on different BIOSes.It creates a special disk layout on your bootable USB Flash Drive making it more compatible with old and troublesome BIOSes.

You can easily test bootable iso without burning it to a CD and without restarting your computer using MobaLiveCD or Sun Virtual Box.
You can also test bootable CD/DVD in VirtualBox without restarting your computer.