Convert .IMG to .ISO with ccd to iso:
Code:
sudo apt-get install ccd2iso
ccd2iso image.img image.iso
And then burn image.iso to CD with k3b or any other CD/DVD burning program.
ccd2iso is a free command line utility. If you prefer to use GUI applicatons instead, then try to install freeware Kiso.
Code:
sudo apt-get install kiso
Then run it with root privileges
Click "CD Image" -> "Convert image" (or press Ctrl+C) and select the image to convert.
your_image.img will be converted to your_image.iso. The converted image is placed into the same folder as your original image.
You can burn .ISO images with k3b or any other program.