ftp://ftp.ics.es.osaka-u.ac.jp/mirrors/Linux/debian-jp/dists/potato-jp/main/  direct

[DIR]upgrade-i386/  direct  47 twin directories
[DIR]source/  direct  65535+ twin directories
[DIR]disks-towns/  direct  5 twin directories
[DIR]disks-i386/  direct  151 twin directories
[DIR]disks-alpha/  direct  76 twin directories
[DIR]binary-i386/  direct  62864+ twin directories
[DIR]binary-alpha/  direct  12600+ twin directories
[DIR]binary-all/  direct  1871+ twin directories