Hi,
I have heard of a lot of people downlaoding and re-downloading distros due to corruption. Heres how to remedy it without re-downloading.
1) If its a CD make the iso files using UltrsISO or something.
2) Get the BitTorrent client - *bittorrent.com
3) Get the .torrent file for the distro version - usually available on the homepage - or jsut Google for it.
4) Start the download in any location (say D: ). As soon as you start, cancel it. In the location, you will have a folder with the name of the .torrent file. And in it htere will be blank iso, 0kb.
5) Replace these isos with the iso you created in the first step. Start the download again in the same location. (D: ) Then it wil lsay "Checking existing file" and download only the bad chunks again.
6) Burn the ISOs to a CD or jsut do a iso install of the distro.
ENJOY!!!
If you use this tip somewhere, please give me the due credit.