Hi Thierry / Mark
I'd like to say the disc was ready but alas it is not yet - work still comes first
However, as Brian points out, there was a series profiling Ray Christopher which effectively plotted the history of GTD in the process.
Parts 1 and 2 can be found and downloaded in 'pdf' format from the
Club Website magazine section for 2005 (Spring/Summer) and I'll look to add parts 3 and 4 over the next couple of days time permitting.