Twin directories of 3.1_r2:

[DIR]  ftp://ftp.zcu.cz/pub/linux/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.funet.fi/.m/mirrors1/cdimage.debian.org/project/build/3.1_r2/
[DIR]  ftp://ftp.cesca.es/mirror2/debian-cd/3.1_r2/
[DIR]  ftp://ftp.ens-cachan.fr/mirror/Debian/debian-cd/project/build/3.1_r2/
[DIR]  ftp://24.215.0.24/Debian/debian-jigdo/3.1_r2/
[DIR]  ftp://ftp.gnome.org/cdimage/archive/3.1_r2/
[DIR]  ftp://139.124.132.163/debian-cd/jigdo/stable/3.1_r2/
[DIR]  ftp://ftp.man.szczecin.pl/pub/Linux/debian-cd/3.1_r2/
[DIR]  ftp://ftp.usc.es/pub/mirror/linux/debian-jigdo/3.1_r2/
[DIR]  ftp://ftp.tu-chemnitz.de/.SAN0/pub/linux/debian/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.free.fr/.mirrors2/cdimage.debian.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://24.215.0.24/Debian/debian-jigdo/project/build/3.1_r2/
[DIR]  ftp://ftp.stu.edu.tw/Linux/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.tu-ilmenau.de/Mirrors/ftp.de.debian.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.uni-kassel.de/Mirrors1/ftp.de.debian.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.gnome.org/cdimage/release/project/build/3.1_r2/
[DIR]  ftp://ftp.tudelft.nl/d1/Linux/cd.debian.org/project/build/3.1_r2/
[DIR]  ftp://206.167.141.10/data/pub/distro/debian/debian-cd/project/build/3.1_r2/
[DIR]  ftp://139.124.132.163/debian-cd/jigdo/stable/project/build/3.1_r2/
[DIR]  ftp://130.251.19.2/debian-cd/project/build/3.1_r2/
[DIR]  ftp://193.226.140.51/debian-cd/project/build/3.1_r2/
[DIR]  ftp://212.87.224.145/debian-cd/project/build/3.1_r2/
[DIR]  ftp://217.75.96.164/debian-cd/project/build/3.1_r2/
[DIR]  ftp://77.88.19.68/debian-cd/project/build/3.1_r2/
[DIR]  ftp://83.166.201.99/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.3logic.net/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.ankara.edu.tr/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.cl.debian.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.hk.debian.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.med.univ-tours.fr/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.port80.se/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.ticklers.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.tuke.sk/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.uevora.pt/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.uvigo.es/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp2.sk.freebsd.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://200.17.202.1/debian-dists/debian-cd/project/build/3.1_r2/
[DIR]  ftp://200.17.202.16/debian-dists/debian-cd/project/build/3.1_r2/
[DIR]  ftp://200.17.202.17/debian-dists/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.br.debian.org/debian-dists/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.linorg.usp.br/debian-raiz/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.ps.pl/dsk0/cdimage.debian.org/project/build/3.1_r2/
[DIR]  ftp://ftp.bme.hu/images/debian/debian-cd/project/build/3.1_r2/
[DIR]  ftp://193.145.205.32/mirror/debian-cd/project/build/3.1_r2/
[DIR]  ftp://82.159.136.126/mirror/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.gva.es/mirror/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.udc.es/mirror/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.uvigo.es/mirror/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.hosteurope.de/mirror/ftp.debian.org/debian-cd/project/build/3.1_r2/
[DIR]  ftp://ftp.skynet.be/mirror1/cdimage.debian.org/project/build/3.1_r2/