Looking for long-term CD archival capability without sacrificing compatibility? Verbatim UltraLife™ Gold CD-R is the answer. Using proprietary dual reflective layers, these discs are designed to last up to 100 years when properly stored. Verbatim's proprietary dual-reflective-layer technology is comprised of a silver layer for compatibility and a gold layer for long archival life. The highly-reflective silver layer allows the disc to appear as a standard silver CD-R to drives and recorders, while the gold layer prevents oxygen from corroding the silver reflective layer. Silver oxidation is a primary factor limiting the lifetime of standard CD media.