On Thu, 2006-02-02 at 16:56 -0800, Steve Kelem wrote: > That's the kind of info I would like to know about. What's a guid > number? Globally Unique IDentifier. > What's the range? 0 to 2**128 - 1. > Does it just have to be unique in the file? Can I generate any number > that's not already in that file? Yes and Yes. David