If you look up the command line tools man files for cdrecord or growisofs, you might be able to work out for yourself how to burn a disc from the command line. e.g. growisofs -dvd-compat -Z /dev/dvd=/file/path/to/disc.iso
I believe the -dvd-compat flag is used to make a dvd video compliant structure. -- John Registered Linux User 263680, get counted at http://counter.li.org