*   Creating an iso image

       mkisofs -J -o cd_image.iso /dir/to/burn/as/root 

    * Find you CD device

      cdrecord --scanbus

    * Burning iso image (use dev = found with scanbus)

       cdrecord -v dev=0,0,0 speed=4 -data cd_image.iso 

    * Burning data on the fly

       mkisofs -J /dir/to/burn/as/root | cdrecord -v dev=0,0,0 speed=4 -data -