Why are different manufacturers discs different in color?
The color of the CD-R disc is related to the color of the specific dye that was used in their recording layer of the disc. This base dye color is modified when the reflective coating is added. Different dye and reflective coating combinations can appear green, blue, or gold. Since the actual operation is only influenced by the dye used, visual differences between various media types are irrelevant in terms of any functional impact.
