Hitachi, a maker of high tech devices including hard drives, has found a way to store data on quartz glass, possibly ready for mass production by 2015. This data would have about the same density per square inch as a music CD but would last “forever”. Quartz glass is highly resistant to chemicals and isn’t affected by electromagnetic radiation. It can withstand temperatures of 1,000 degrees Celsius for about two hours without sustaining damage. Water is the one thing that kills almost all electronic equipment yet it would have absolutely no effect on this glass. Hitachi is claiming that it should last a few hundred million years, or more.