I looked through this forum for more details on the Dutch article posted 19/8/2003(I spelled in Artikel to make it easier to find) but couldn't find anything so that's why I'm starting this thread. When I got my first CD burner in '98 (Panasonic 7502) I purchased five different brands of CDs (Sony, Fujifile, TDK, Verbatim, and Kodak). I needed to create 12 copies of a CD for use in our lab so I used two of each brand and three of a couple of the brands. I no longer have access to those CDs but as far as I know, only one CD became unreadable (one of the TDKs) and a couple of people I know that still have one of the other CDs reported to me that they are still perfectly readable.
I had the same concern back in '98 expressed in the Dutch article and at that time, 10 years was the best guess according to what I could find at that time. I would CERTAINLY like more information about the testing done by PC-ACTIVE in order to determine what I can do to make sure my CD-Rs last longer than 2 years.