Earlier today we found an issue with the CentOS-5.1 x86_64 CD iso set, distributed via direct download, wherein CD-2 was not passing tests, to rectify the issue we have refreshed the images on all mirrors. The changes have now propagated through the mirror network.
md5sum and sha1sum's published have also been updated to reflect this change.
x86_64 CD isos distributed via bittorrent are not affected by this issue.
x86_64 DVD isos distributed via bittorrent and direct downloads are not affected by this issue
None of the i386 iso images are affected by this issue.
The correct MD5's for x86_64 CD ISOS are :
2318b7edf7f32def4a35897f69ecf06e CentOS-5.1-x86_64-bin-1of7.iso 0053faafc4c31d4e47d3d86f9f9a9af7 CentOS-5.1-x86_64-bin-2of7.iso 560c3b5057050dab6ba76495f46f409c CentOS-5.1-x86_64-bin-3of7.iso e5fb3d243befb79de70e06009c77e474 CentOS-5.1-x86_64-bin-4of7.iso b752135296ad9472105d6c0a8f5157b5 CentOS-5.1-x86_64-bin-5of7.iso 20e08026628b60e4586bffc446cdd566 CentOS-5.1-x86_64-bin-6of7.iso 5008fbaca9671e26dfaa4e24b2c2267f CentOS-5.1-x86_64-bin-7of7.iso