I've worked on data search software for over 10 years. We sold chemical information search engines on CD(now DVD) and internet. Common DVD is 4.7GB. Just a educated guess, the data could prolly fit on a DVD. But typing all that into a database stinks and is highly prone to error, even when a highly qualified data entry person does it with a QA process. Also, $$$.
Steve's pages is really exciting. For best results, I usually navigate my way in from the front page. When I did a "save as favorite", and tried to go straight to a page, I had issues. When I start a new caliber, I try to always use his site to compare my load book data and powder company data. I use my high school English teacher's rule of min. 3 resources.
Much thanks for providing this information to the public.