Remote Backup via SSH

I have a firewall box that doesn’t have a DVD burner on it. Its entire filesystem is about 3GB, making backup to a single DVD easy. This is how I get the backup to the host with the DVD burner. On the firewall, I run this:

tar czf - / 2>/var/log/backup-full.log | (ssh me@dvdhost "cat > /backupdir/remote-backup.tgz" )

Then I go to the DVD burner host and use the DVD writing commands to back it up:

dvd+rw-format /dev/dvd
growisofs -Z /dev/dvd -R -J /backupdir/remote-backup.tgz