Hi Steve:

I have not yet seen discussion of platinum disks on either the ARSC or 
the AMIA list-serves. Who is the manufacturer of these disks?

This is my personal opinion, but what's more important than the 
reflective surface is the "permanence" of the chemical formulation in 
the dye layers. This and the manufacturer. I'd pass on a platinum disk 
if the manufacturer is not JVC/Taiyo-Yuden, Verbatum or MAM-A (they all 
manufacture in-house to tight tolerances and use the better chemical 
formulation for the dye layers). Also another consideration - gold 
reflective surfaces have been around long enough, I imagine, that we 
would have heard reports about it adversely effecting the chemicals in 
the dye layers. We do not yet know if platinum could adversely effect 
the chemicals in the dye layers of the disk. Platinum "sounds great" but 
don't forget - it's the pioneers that have the arrows in their backs!!!

Just my two bits.

John Schroth

On 7/17/2013 12:20 PM, Steven Smolian wrote:
> I've received an offerfrom a regular supplier of recordable CDs with
> platinum rather than gold for about $ 120 per 100.  Since platinum doesn't
> oxidize same as with gold, I'm wondering about reports on this product.  Any
> deeply learned responses?
> Steve Smolian