I'm looking to make some acoustic panels to dampen down the echoes in a couple of rooms in the house.  However, everyone seems to recommend compressed fiberglass insulation for the core of the panel. Does anyone know where I can find some in New Zealand?

http://www.gearslutz.com/board/bass-traps-acoustic-panels-foam-etc/428278-here-my-diy-frameless-acoustic-panels-photo-thread.html
http://structbio.vanderbilt.edu/~jsmith/ht/703-panels.html