Wodim is an easy tool to write an ISO image to DVD, and it's included with Red Hat.
In order to write an ISO image to DVD, first start off by making sure what the device is of the DVD burner. Most often, it is /dev/sr0. To validate this, run:
# ls -als /dev/sr0If that's the correct device, all you need is an ISO image. Let's say, your ISO image is located in /path/to/image.iso. In that case, use the following command to write the ISO image to DVD:
# wodim dev=/dev/sr0 -v -data /path/to/image.iso