| abstract |
Optical data carrier, comprising a preferably transparent substrate, optionally already coated with one or more reflection layers, on the surface of which an information layer which can be written on with light, optionally one or more reflection layers and optionally a protective layer or a further substrate or a covering layer, which are coated with blue, red, are applied or infrared light, preferably laser light, can be written and read, the information layer containing a light-absorbing compound and optionally a binder, characterized in that at least one cationic amino heterocyclic dye is used as the light-absorbing compound. |