У вашего броузера проблема в совместимости с HTML5
http://www.fedevel.com/ This video has been taken when I was doing DDR2 layout using Altium Designer. You can download the spreadsheet what I used during the layout here:
http://welldoone.manamyco.com/2010/11/ddr2-length-calculator-spreadsheet-used-for-altium-designer/
I usually use Cadence Allegro and I had to improvise a little bit this time. If there is a better way to measure copper length between objects, please leave a comment.
Hope this video helps some people.