SLES9: howto make a full backup on DVD?

2 Mar 2006

      SYSTEM:
HP Titanium server with SLES9 and DVD-RW
size of complete sytem 1,7GB

What is the best (easy, but secure) way to make a full backup of the
complete SLES9 system on DVD?
I tried to make a tar ball, but somehow it keeps growing (above 10GB), so
apparently it keeps including itself.

Jan van Kollenburg