Acclaimed U.S. nature photographer Ansel Adams negatives were recently found and said to have been valued at £128million - Negatives, like prints are tangible and can be seen hence were found, however, I wonder, in 60yrs from now, how will anyone ever stumble upon a CD or hard-drive to find any images that can be "opened"
Arrowfile - archival storage specialist supplier comments - the CDs, DVD, and hard - drives have a lifespan of around 3 to 7 years putting all images including masterpieces at risk.
The only way is to keep on re-back every 3 to 4 yrs.
This removes the possibility of our great granchildren or anyone ever stumble accross images that could be worth millions.
Arrowfile states the best way to store is to make a print (at least, it can be seen and hence be found) and store them in a specialist pocket to last around 300 years.
28th July 2010