ISO 10995 is the only international standard currently set to test DVD+/-R/RW/RAM discs. The standard, established in April 2008 in Japan, specifies a the test method for estimating the archival lifetime of optical media. It uses an accelerated aging test method for estimating the life expectancy for the retrievability of information stored on recordable or rewritable optical discs. JVC created these specialized optical discs specifically for long-term storage, and they are the only ISO 10995 certified disc for data archival. Many other manufacturers' archive-grade discs employ a gold reflective layer to minimize degradation during long-term storage. While gold is an appropriate material for this purpose, these discs sacrifice reflectivity, an important property needed for the reading and writing of optical discs. Lower reflectivity can cause a higher write-error rate, which affects the storage life of recorded discs. JVC uses a special silver alloy in its archival discs, designed to resist degradation without sacrificing reflectivity. JVC applies an additional hard coat to its archival DVD-Rs, making them 200 times more scratch resistant, 1000 times more resistant to dust and 7 times more resistant to fingerprints.