Last time, we talked about a weird white dust–a mold–that threatens to contaminate and destroy audio and video tapes. Obviously, magnetic tape isn’t as durable as we once thought. Well, what about CDs? Not a good choice, either.
We’ve known for years about something called “laser rot,” which happens when air gets at the aluminum layer sandwiched in between the plastic that makes up a CD. Once it starts going brown, it’s game over.
So what is the best way to store music over long periods of time? Well, if we could chisel it into rock, that would be best. But until something better than vinyl comes along, that’s pretty much it. Storing music in plastic grooves is the most stable way we’ve discovered of preserving music.