In 2010 the International Journal of Digital Curation published an article written by David S. H. Rosenthal and titled, Bit Preservation: A Solved Problem? The article looks at recent research into how well actual storage systems preserve bits, showing that they fail to meet the requirements by many orders of magnitude, and suggests ways to deal with the situation.
http://www.ijdc.net/index.php/ijdc/article/viewFile/151/224.
