USB stick image for snapshots

[carsten.kunze%arcor.de@localhost]

Hello,

on ftp://nyftp.netbsd.org/pub/NetBSD-daily ISO images of snapshots (e.g. named boot.iso) can be found. Would it be possible to also add something like boot.img which can be copied to a USB stick? If one often installs new snaphots on "bare metal" it is more comfortable to use a USB stick than burning a CD every time.
Or is there a script which converts the ISO image to a USB image? I did follow the instructions on
https://wiki.netbsd.org/tutorials/how_to_install_netbsd_from_an_usb_memory_stick/
but it didn't work. E.g. there is no file named netbsd-INSTALL.gz and no directory named sets on the CD image.

Carsten