Thanks to frank1 over at cdrlabs for the site link.
Some PDF documents about the theory and testing methodology behind the NIST accelerated aging tests on DVD media. I found some useful information in these, I hope some people on here will too
The PDF documents:
Unfortunately, NIST have decided not to name the manufacturers of the media they are currently testing but maybe if you e-mail the people conducting the research, they will tell you
Also a presentation by Imation on a possible upcoming certified projected average 50 year lifetime archival DVD.