Hmm, I had to Google your request because I didn't know there were other classifications of paracord. Very interesting. Thanks for pointing that out.
http://en.wikipedia.org/wiki/Parachute_cord

I do know of a source for high strength non-stretch spectra cord (1400 lb). It's definitely not the same thing as paracord but it's more like a "steel fabric" cord in some ways. http://www.backpackinglight.com/cgi-bin/backpackinglight/aircore_pro_ursa_bear_bag_hanging_rope.html