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With the advent of the Compact Disc as a storage media for music and data, the search was on for a way to make this read-only system (CD-ROM) into an all purpose large capacity readable and writable disc.

Hence the CD-R was born.       A load of CD-Rs

This is the story of that birth and of the chemistry behind the technology. the chemistry of near infrared sensitive dyes.
Read on for a brief introduction to the technology followed by a more in depth look at the dyes themselves.