ftp://ftp.cirr.com/pub/NetBSD/NetBSD-4.0_STABLE-20090407/  direct

[DIR]alpha/  direct  31066+ twin directories
[DIR]amd64/  direct  34487+ twin directories
[DIR]i386/  direct  65535+ twin directories
[DIR]iso/  direct  10150+ twin directories
[DIR]source/  direct  65535+ twin directories
[DIR]sparc/  direct  26652+ twin directories
[DIR]sparc64/  direct  22012+ twin directories