backup folder onto DVDs

[BRINER Cedric <briner@infomaniak.ch>]

hi,

I'd like to backup un folder with 14Gb of data on it on DVDs.

I thought about doing this.

1-
#create dvd's iso and mount them
dd if=/dev/zero of=dvd1.iso bs=1000 count=4'700'000
mkisofs  dvd1.iso
mkdir dvd1
mount -t iso9660 -o loop dvd1.iso dvd1

and so on with dvd2, dvd3

---comment-----------
I get an error ih this first steps
dd if=/dev/zero of=dvd1.iso bs=1000 count=4'700'000
mkisofs  dvd1.iso
mkdir dvd1
mount -t iso9660 -o loop dvd1.iso dvd1
unable to mount it !!!
---end of comment----

2-
#do a hardlink backup of the <folder to save>
cp -al <folder to save> <hardlinked folder>

3-
#create the first DVD
mv <hardlinked folder> dvd1

4-
#and then when the mv stop, due to that the dvd1 is full
#then continu on the 2nd dvd
mv <hardlinked folder> dvd2
and so on

5-
#then unmount the dvds
umount dvd1
umount dvd2

5-
and the burn them.

any better idea of doing this ?

Cedric BRINER