ftp://ftp.uni-hannover.de/pub/mirror/bsd/NetBSD/iso/  direct

[DIR]livecd/  direct  1906+ twin directories
[DIR]4.0.1/  direct  439+ twin directories
[DIR]4.0/  direct  2569+ twin directories
[DIR]5.0.1/  direct  404+ twin directories
[DIR]5.0/  direct  2613+ twin directories