In order to conserve the limited bandwidth available .iso images are not downloadable from mirror.centos.org

The following mirrors should have the cd .iso images available:

Actual Country -

http://rsync.atworks.co.jp/centos/5.5/isos/x86_64/
http://ftp.yz.yamagata-u.ac.jp/pub/linux/centos/5.5/isos/x86_64/
http://ftp.iij.ad.jp/pub/linux/centos/5.5/isos/x86_64/

Nearby Countries -

http://mirror.usonyx.net/Linux/CentOS/5.5/isos/x86_64/
http://mirrors.163.com/centos/5.5/isos/x86_64/
http://centos.tt.co.kr/5.5/isos/x86_64/
http://data.nicehosting.co.kr/os/CentOS/5.5/isos/x86_64/
http://centos.mirror.cdnetworks.com/5.5/isos/x86_64/
http://mirror.khlug.org/centos/5.5/isos/x86_64/
http://ftp.daum.net/centos/5.5/isos/x86_64/
http://ftp.nsysu.edu.tw/Linux/CentOS/5.5/isos/x86_64/
http://mirror.corbina.net/pub/Linux/centos/5.5/isos/x86_64/

Mirrors Verified Sun Sep 26 22:01:39 2010 UTC


Or use bittorrent to download the .torrent files provided.

Bittorrent is a peer to peer download system described at http://bittorrent.com/

An rpm for CentOS-3 or CentOS-4 is available at http://dag.wieers.com/packages/bittorrent/.
(Use the latest el3 version for CentOS-3, or the latest el4 version for CentOS-4)