Problems with Digital Archiving

This is a brief article about problems with digital archiving in the music industry. I wonder if some librarian could comment on digital archiving in the book world. DVD, for example, strikes me as a less durable medium than microfiche, which was valuable to me in genealogy research.

(Click on Dec. 14 link)
http://www.macintouch.com/readerreports/archivalissues/index.html

This article contains another link to Rolling Stone magazine about the same issue.