On 5 Feb 2012, at 14:00, John Wilson wrote: > > The transformed plate number is then hashed with the one-at-a-time > hash function described here > http://www.burtleburtle.net/bob/hash/doobs.html You have to wonder how on earth an obscure, unreviewed algorithm published in a hobbyist magazine ends up being used in a production system, don't you? ian