Apologies for cross-posting.
The paper, "The Relative Stabilities of Optical Disc Formats" has been
published in Restaurator Vol. 26, No. 2 (2005). This paper summarizes
research that compared the stabilities of a variety of optical disc formats
such as audio CDs, CD-Rs, CD-RWs, DVDs, DVD-Rs, and DVD-RWs.
You can visit this link for more information:
Senior Conservation Scientist
Canadian Conservation Institute