> On Debian website I found
>
> debian-40r4a-amd64-DVD-1.iso 4580902 KB Monday, August 04, 2008
> debian-40r4a-amd64-DVD-2.iso 4567988 KB Monday, August 04, 2008
> debian-40r4a-amd64-DVD-3.iso 4271368 KB Monday, August 04, 2008
>
> Do I need all of them? Or only DVD-1?
I'd advise to try a "Net Install"; see
http://www.debian.org/CD/netinst/
You'd download a small CD image (~150 MB) and then install the packages
you need directly from the network.
Best,
Gilles