[supercat]

// They tell me that the newer microfilm has a shelf-life of 500 years if stored properly. //

Unfortunately, a lot of stuff on microfilm is barely legible even when new. As for long-lived storage, how about daguerotype? That's stored as metalic mercury on metalic silver, right?

[sneakers]

On the contrary, we have documents from the early 1800's which are very readable on microfilm and we get good copies. Of course, it depends upon the condition of the document in the first place. We have to adhere to strict guidelines when filming and cannot dispose without the go-ahead of the State Historical Commission - and that is after they have looked over the archival copy of our film.

As far as daguerrotype, well, I'm not an expert on the the evolution of photography, so I couldn't tell you anything about that. :)

[Old Professer]

As long as you aren't picky about spelling.