I don't think I saw this mentioned here so I thought I'd pass the word along. The Council on Library and Information Resources (CLIR) and the National Institute of Standards and Technology (NIST) have produced a new publication "Care and Handling Guide for the Preservation of CDs and DVDs: A Guide for Librarians and Archivists" by Fred R. Byers. The guide is available for free at the NIST website at http://www.itl.nist.gov/div895/carefordisc/ David Seubert