There are a lot of different disk burning tools, and all they have different advantages and disadvantages. But one of the best is Ashampoo Burning Studio. It has simple interface, useful features and it has free version. To download it go to http://download.cnet.com/Ashampoo-Burning-Studio-Free/3000-2646_4-10776287.html.
After you download Ashampoo Burning Studio launch the installation. Following window should appear:
Click Next and follow the Wizard.
When you see following screen:
click Finish and Ashampoo will start.
To Burn disk from existing image click: Create/Burn Disk Images and then click
Then select image, that you wish to burn, insert disk to the CD drive and press Burn button.
If you want to create a new project, come back to main menu and click Burn Files and Folders, and then click Create a New CD/DVD/Blue-Ray Disk
In the next window click Add Files and select all files and folder that you would like to add to the project, then click finish and click next. And then click Burn button.