md5sums doesnt match

[secure@nic.fi]

i downloaded debian-30r0-i386-binary-1_NONUS.iso two times 
from .fi mirror and both times i got right size but wrong md5sum.

my md5sum:
55614f7d4d203ef1edce763a2fc358e1

mirror ftp's md5sum:
070280e09d0c21e9e9a320c59de07093

so.. i mounted image,run md5sum -c md5sum.txt and got

WARNING: 1 of 2692 computed checksum did NOT match

./pool/main/z/zope/zope_2.5.1-1_i386.deb: FAILED


zope_2.5.1_i386.deb has been changed but md5sum is old(?)

Jani Paalijarvi
secure@nic.fi