They say that they use cyanine as the dye (which is blue), and silver as the reflective layer. But my CDs are clear or silver coloured, which is consistent with a phthalocyanine based dye. Maybe their website hasn't been updated in awhile? -dan c. At 01:50 AM 11-03-05 +0800, karl shah-jenner wrote: > >----- Original Message ----- >From: "Dan Cstill Cyanine based. " >: >: I've been using TDKs for a long time, but they are not green or >blue-green, >: but appear colourless. So I wonder if TDK has changed their formulation >: to pthalocyanine? >: >: -dan c. > >check that site link - they say what most of the TDK dyes are.. > >k > >