--Commandline solution (as root) - substitute your .iso, path included for "filename.iso"

Code:
time growisofs -dvd-compat -Z /dev/cdrom=filename.iso
Example:
time growisofs -dvd-compat -Z /dev/cdrom=/mnt/hda1/knoppix.iso

Quote Originally Posted by Harry Kuhman
Quote Originally Posted by namingishard
therefore cannot be stored in an ISO file system.
Read the downloading FAQ. The message is absolutely right and makes perfect sense. You don't burn the ISO to a DVD. Follow the documentation link near the top of this page to find the faq.