wrong md5sum on FC4-i386-DVD.iso

[Lars]

hi,
first of all: sorry for my bad english...

i downloaded the FC4-i386-DVD.iso image 3 times from different servers in 
germany, and got a wrong md5sum each time...

in the check-files is the following sum:
2f151a7329846da685c2a72fcb40eba3e8a355a0  FC4-i386-DVD.iso
i got a different one each time

the last one i had was:
c136e0bb691398e9d7b15d645f930628 FC4-i386-DVD.iso
its different and !?shorter?!

any ideas welcome, thx for your help
lars