donaldsc
Veteran Member
I totally agree with you - color separation negatives are obviously an absurd solution to the problem. However, the OP did say "permanent".It has not been tested for 1000 years. I would prefer the mdisk over color separation negatives because they are not digital and have already degraded comparing film recording vs digital recording of an image
But this is preference. There is no guarantee that either will last for 1000 years due to heat, humidity, atmospheric conditions.
We know that silver based photos will last 150 years as we have 150 year old pictures. We do not actually know that mdisks will last that long as we only have aging tests and the assumption that the results of the aging tests are valid. One other thing that we can not know - even if we bought a computer, a drive and a monitor of some type and put it in a hermetically sealed box, there are moving parts in there that will not survive.
The real answer is that there is no way to ensure permanent storage of pictures and as one poster said, who will care about them 100 years from now. So we do our reasonable best and do not worry about it.
