Download the file called Map_ coords.zip and extract it to your hard drive.  Then double-click the HTML files to play the video back in your browser. 

Sizing map patterns within materials is easy with a few fundamental steps:

1) analyze the map pattern to determine real world coverage(how much area does the map cover)

2) apply a UVW Map modifier to the object

3) enter the coverage area values in the Length and Width fields of the UVW Map modifier Planar mapping. 

Good luck and have fun
Ted