Dominik - I don't think anyone here in North America has worked with that last batch of
matrice film. Egbert Haneke uses up most of it for his own work, which is exposed with
blue laser rather than enlarger. But it's allegedly similar to the batch made by Efke, which
I am several others are using. Back in its heyday there were several major manufacturers
of dye transfer film and dyes, including not only Kodak, but the US military, Color Corp
of America, Hollywood of course (for release prints), and one or two others. Then alternative dyes might be selected for some special need. So it's pretty hard to generalize
the archival properties of the medium in its broader sense. My own brother's dye transfer
prints faded out because he kept them in vinyl sleeves. But that's how portfolios were done back then. They didn't know better.