Preserving Write-Once DVDs

Preserving Write-Once DVDs: Producing Disk Images, Extracting Content, and Addressing Flaws and Errors.  (PDF). An Analytic Report by George Blood Audio Video Film for the Library of Congress. April 2014.
Report on technical issues in reformatting projects for the Library of Congress with an overview of the range and extent of the issues.

• Most specialists agree that optical disc media, although inexpensive and easy to use, does not support long-term data management.
• The estimated shelf life of a CD-R or CD-RW is between five and ten years.
• The lifespan can be lengthened or shortened by environmental and technological factors.
• Of the 500 discs reformatted, 10% were problematic
• The report provides brief reviews of all of the tools used to clone discs.
• Shows the Structure of a VIDEO_TS folder

Digital Preservation Matters.