Twin directories of iso:

[DIR]  ftp://ftp.ox.ac.uk/pub/comp/security/IPFILTER/IPF-OBSD/iso/
[DIR]  ftp://ftp.mimuw.edu.pl/mirror/ftp.redhat.com/pub/redhat/linux/6.2/en/iso/
[DIR]  ftp://ftp.mimuw.edu.pl/People/lewar/iso/
[DIR]  ftp://ftp.uni-freiburg.de/pub/bw-pc/iso/
[DIR]  ftp://ftp.eenet.ee/pub/gentoo/experimental/prefix/x86-interix/iso/
[DIR]  ftp://ftp.linux.it/pub/slax-tlc/iso/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.3/pub/gnu/hurd/contrib/iso/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.2/pub/gnu/hurd/contrib/iso/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.1/pub/gnu/hurd/contrib/iso/
[DIR]  ftp://134.121.1.1/.snapshot/nightly.0/pub/gnu/hurd/contrib/iso/
[DIR]  ftp://134.121.1.1/.snapshot/hourly.1/pub/gnu/hurd/contrib/iso/
[DIR]  ftp://ftp.eutelia.it/pub/SunFreeware_Mirror/companioncd/iso/
[DIR]  ftp://ftp.eutelia.it/pub/Info-Mac_Mirror/per/iso/
[DIR]  ftp://ftp.cesca.es/mirror2/gnu/hurd/contrib/iso/
[DIR]  ftp://ftp.cirr.com/pub/NetBSD/NetBSD-5.99.12-20090525/iso/
[DIR]  ftp://ftp.cirr.com/pub/NetBSD/NetBSD-5.0_STABLE-20090524/iso/
[DIR]  ftp://ftp.saintjoe.edu/pub/linux/slackware/iso/
[DIR]  ftp://ftp.uni-jena.de/pub/linux/MIRROR.scientific/309/x86_64/sites/example/iso/
[DIR]  ftp://ftp.uni-jena.de/pub/linux/MIRROR.scientific/309/i386/sites/example/iso/
[DIR]  ftp://ftp.uni-jena.de/pub/linux/MIRROR.scientific/47/i386/sites/example/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/opensuse.org/distribution/11.1-RC1/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/opensuse.org/distribution/10.3/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/opensuse.org/distribution/11.0-Beta1/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/opensuse.org/distribution/11.0-Beta2/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/opensuse.org/distribution/10.2/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/test/9-Preview/Fedora/i386/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/test/9-Preview/Fedora/ppc/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/test/9-Preview/Fedora/source/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/test/9-Preview/Fedora/x86_64/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors/ftp.suse.de/i386/9.3/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors/ftp.suse.de/i386/10.0/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/Mirrors2/gentoo.org/experimental/prefix/x86-interix/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/8/Fedora/i386/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/8/Fedora/ppc/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/8/Fedora/source/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/8/Fedora/x86_64/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/7/Fedora/source/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/7/Fedora/x86_64/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/7/Fedora/i386/iso/
[DIR]  ftp://ftp.uni-frankfurt.de/pub/unix/linux/Mirror/ftp.redhat.com/fedora/core/7/Fedora/ppc/iso/
[DIR]  ftp://ftp.cirr.com/pub/NetBSD/NetBSD-4.0_STABLE-20090407/iso/
[DIR]  ftp://ftp.cirr.com/pub/NetBSD/NetBSD-5.0_RC3-20090405/iso/
[DIR]  ftp://ftp.cirr.com/pub/NetBSD/NetBSD-5.0_RC3-20090408/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/tex-archive/macros/latex/contrib/isostds/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/tex-archive/macros/latex209/contrib/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/gnu/hurd/contrib/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/Linux/RedHat/fedora/linux/releases/9/Fedora/i386/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/Linux/RedHat/fedora/linux/releases/9/Fedora/x86_64/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/Linux/RedHat/fedora/linux/releases/8/Fedora/x86_64/iso/
[DIR]  ftp://ftp.inf.utfsm.cl/pub/Linux/RedHat/fedora/linux/releases/8/Fedora/i386/iso/