| abstract |
The present invention relates to the use of anionic phthalocyanine based dyes as BCA (Burst Cutting Area) dye in optical layers for optical data recording, preferably for optical data recording using a laser with a wavelength from 380 to 650 nm. The invention further relates to an optical data recording medium capable of recording and reproducing information by laser beam irradiation. Particularly, it relates to a heat mode type optical data recording medium, which employs an anionic phthalocyanine based dye in the optical layer. |