I am not sure. I have been using Hardy since January and the size of the release
has ballooned. Initially everything was onto one CD, but when I downloaded all
of the final releases for Ubuntu and Kubuntu most would not fit onto the
rewritables I had been using and I had to switch to DVD format. It was a
surprise to me, because I had used them right up to the final beta with no
problem.

There have been several updates,but not all for the bistro alone of
course but for the other applications included. Some folk still do not
have DVD drives so they release both DVD and CD. DVD are bigger than CDs
in capacity of course.