Happy birthday to the compact disc. It’s 25 years old today.

It’s amazing that it’s not only lasted this long (in an age where technologic obsolescence is a pretty quick game) but that it’s spawned so many other technologies based upon it: the CD-ROM and associated writeable media, the DVD and it’s associated media, and in fact the entire digital music revolution.

The big question: what’s the next technology that will have such staying power?