MD5sums seem to be different for install42.iso for some platforms >(i386, macppc, sparc64)

Hi,

few downloads for i386, macppc and sparc64 of install42.iso have had allways
different md5sums than on the web .. eg:
---
ironm@kanotix:~/Desktop$ rsync -avP
rsync://rsync.it.su.se/OpenBSD/4.2/macppc/install42.iso ./OpenBSDmacppc-
install42.iso
receiving file list ...
1 file to consider
install42.iso
   242876416 100%  205.55kB/s    0:19:13 (xfer#1, to-check=0/1)

sent 122 bytes  received 242906190 bytes  210217.49 bytes/sec
total size is 242876416  speedup is 1.00

ironm@kanotix:~/Desktop$ md5sum -b Open*
af3d6273727be1f96da8684ca7f1efef *OpenBSDmacppc-install42.iso
---

I'm asking me what I'm doing wrong.

best regards,
Mark