So recently this video (http://gillwaredatarecovery.wistia.com/ ... qfz8xr96jf) appeared on Gillware's website showing a burnishing system being used to clean / test a HDD platter. I'm sure some of you are wondering where you can get such a machine. So after a little research, I found the company that makes it is called MRATek LLC in Fremont, California.
Here's their website: http://www.mratek.com/MRA/Products.html
Here's their website: http://www.mratek.com/MRA/Products.html