eFilm Inkjet Archival Gold CD-R's incorporate patented Phthalocyanine (thalo-sy-a-neen) dye and a 24k gold reflective layer into every CD-R. The innovative materials found in eFilm Inkjet Archival Gold CD-R's make them among the most reliable storage media available. Other CD-R's may deteriorate quickly due to common environmental factors: ultra violet light, heat, and humidity. Results of an accelerated aging process used to test the longevity of CD-R media show eFilm Inkjet Archival Gold CD-R's may safely store images for more than 300 years.
The patented Phthalocyanine dye is the most critical component of the CD-R because it is where data is stored. A CD-R burner creates pits in the dye layer when it burns a CD-R, storing digital information in these pits. The Phthalocyanine dye reacts quicker to the writing laser compared to dyes found in most CD-R's, thus making sharper pit edges and a CD-R easier to read by CD drives. Compared to Cyanine and Azo dyes found in the majority of CD-R's on the market, Phthalocyanine dye lasts significantly longer when subjected to the harmful effects of UV light, heat, and humidity.