I copied this from TDK's site: "CD-R recording dyes (formulations) come in the 3 basic colors: Colorless (Pthalocyanine) - which may appear as gold or silver depending on the reflective surface Green or Blue-Green (Cyanine) Blue (Azo) Each has its attributes. Cyanine, used for TDK media, has a wide power margin. This means the recorder's laser power can vary to a greater extent from optimum and still produce a disc with good signal characteristics. The bluish-green color of TDK's current media is due to the silver reflective surface; the dye is still 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. At 10:58 AM 10-03-05 +0800, karl shah-jenner wrote: > [snip] > >the most durable dye, PhthaloCyanine, used in Princo's and many other >makers too, but I found the TDK's listed were using cyanine dye(what!!!) - >the worst dye of the lot for longevity - and they use this in the disks >that they *guarantee for 100 years* even though the dye has through testing >shown to have an expected survival period of around 10 years. Now not all >the TDK disks were made with this cheaper dye, but hey, something funny >going on here :-/ Sounds like the marketing department has it all over the >engineers! > [snip]
