| abstract |
It has a substrate which is preferably transparent and which is already optionally coated with one or more reflective layers, on which light-writable information layers, optionally one or more reflective layers and optionally A protective layer or other substrate or cover layer is provided and can be written and read by blue or red light, preferably laser light, said information layer containing a light absorbing compound and optionally a binder An optical data recording medium, wherein at least one hemicyanine dye is used as a light-absorbing compound. |