I have tried using ImageBurner and the Recovery app in ChromeOS yet distro doesn't complete the operation and the image is never finished. I've tried USB drives by Transcend, HP and Jetflash and it doesn't seem to work on any.Could anybody help me on how I should proceed?Maybe using an SD card or a different app? 
How do I make a backup image of ChromeOS on an AcerC720?
backup;disk image;chrome os