LMAO .. .
This is so sad that I'm not sure if we should be laughing or crying for the customer drives and data being exposed to this risky process, so for now I'll just shake my head and give my humble 2 cent based on 17 years of experience of having worked at 3 big data recovery companies both in Canada and the US (Ontrack & ActionFront, etc..).
1. This "burnishing" process is nothing more than a "BUFFING" of the platter surface (more on this later)
2. This process introduces VERY HIGH & UNNECESSARY RISK to platter tracks which are more likely to cause EXTENSIVE surface and track damages for modern drives.
3. Unless these are using this on 1995 or older (200MB single platter sized) drives this is WORTHLESS for most modern drives.
4. MRACK makes the tool for the testing and buffing of things like CDs, and optical disks plastics.. and other "pre-tracked" low density recording devices.
Now I understand that companies like gillware need to keep pushing fake research miracle tool stories as part of their consume marketing scheme, but save your customers data, time and money and don't expose any magnetic based track / platters through this kind of abuse.
The BEST and "safest" way to clean and remove debris from disk platters is to use sterilized and highly targeted high pressured air or non-oxidizing liquids.
It's ok for these guys peddle this falsehood to clueless customers, but as a technician simply ask yourself the following questions:
1. If the hard drive manufacturers take all possible effort to avoid surface contact with tracks why in the world would you want touch and "BUFF" the tracks?
2. What happens to the pre-existing debris? Wouldn't most of them cause further track damage during the buffing process?
3. Just because the surface is "smooth" does it mean that the tacks are in tact?
You would expect to see stuff like this being done at $99 data recovery computer shops.