upgrade from FC1 to FC3

[nantes]

Hi,

I try to upgrade from FC1 to FC3.
I have downloaded iso files, md5 sums are OK, an burned them all.

CD 1 works fine, but CD2 (FC3-i386-disc2.iso) hangs up intallation telling 
that the media  or openoffice.org-i18n-1.1.2.10 package is corrupted.

I burned another media but the problem is the same, at the same point.
I tried to copy openoffice packages from CD to disk, it works fine. No I/O 
problem.

Now that FC3 has begun to upgrade my FC1 with CD1 and half of CD2, what I am 
supposed to do ?

What will happen if I give up now ?

Need help

sorry for my poor english...

-- 
Ludovic