Archival CD-ROM blanks
Most CD-ROM blanks use
azo or cyanine (green, silver or blue in color) dye for their recording medium. These dyes are sensitive to light and can fade over time rendering the disk unreadable.
A longer lasting alternative is Phthalocyanine (gold in color). These are made in Boulder, CO by
MAM-A Cost is higher (about $1.60 each in bulk packs of 100) but they are expected to be
readable for 300 years.
Posted by DaveH at May 25, 2004 2:01 PM