Re: A 50,000-year time capsule in space...

Michael S. Lorrey (
Sat, 17 Apr 1999 13:25:35 -0400

James Rogers wrote:

> The biggest problem is deterioration of the media. The storage life of CD
> media isn't even close to 50,000 years. Normal aluminum film CDs are only
> good for about 100 years and recordable CD media is around 20 (although it
> varies widely depending on the type). The longest lasting ones, gold film
> CD masters, will last less than 1,000 years.

What are the criteria for decay of the media?

Mike Lorrey