Ben Goren wrote: > I believe the reason for that has something to do with manufacturing > tolerances, but don't quote > me on that.... Copyright - there is no license with the reference file, so by default one has to assume that X-Rite claims copyright over it. [There's an argument that such a file is not subject to copyright because it's a collection of facts, but I'd prefer not to have to establish that in a court of law.] Graeme Gill.