You will see lots of programs that claim to support creation of bootable Ubuntu USB drive . I have found that many are outdated and not that good.
The best tool in my opinion is “Fedora LiveUSB Creator”. This small application will allow you to use ANY ISO image and place it on a stick. You can make a bootable USB stick in 3 simple steps from 1 window!
1. Click on Browse button and select an image (ISO) file –> 2. Select target device (USB stick) –> 3. Click “Create Live USB”
Here is where you can download it: https://fedorahosted.org/liveusb-creator/
Hope that it works for you!
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