[Centos] Centos-3.3 i386 CDs

Hi

 Just wondering  why there are  two  diferent version of  file comps

#ll iso/mnt-cd1/RedHat/RPMS/comps-3.0.0centos-0.20040916.i386.rpm
-r--r--r--    1 root     root      6821992 Sep 16 19:11 
iso/mnt-cd1/RedHat/RPMS/comps-3.0.0centos-0.20040916.i386.rpm
#ll iso/mnt-cd3/RedHat/RPMS/comps-3.0.0centos-0.20040916.i386.rpm
-r--r--r--    2 root     root      6809965 Sep 16 18:52 
iso/mnt-cd3/RedHat/RPMS/comps-3.0.0centos-0.20040916.i386.rpm
#

Which is the right?

Petr Klima