Mandriva 4 check sums do not match

I have tried to download this distro a few times and it keeps returning 723b40135623ec3b735928169c64162c instead of 8746c0053b6f471b8ddd52b5455745b5. This site https://sourceforge.net/projects/ope...s/release/4.0/ has the same check sums for both versions.What am I missing here?
Thanks for your expertise!