"Unlike pressed original CDs, burned CDs have a relatively short life span of between two to five years, depending on the quality of the CD," said Kurt Gerecke, a storage expert at IBM's German outpost, in an interview with Computerworld
. Closer to two for off-brand cheapies, he added. Other estimates vary
. I regularly use a CD-R of test tracks burned in 1999. Whatever their validity may be, these warnings apply only to dye-based recordable CDs. Prerecorded CDs are more durable (if they weren't there'd be riots) though no one really knows how long they will last. More bad news: Hard drives are also vulnerable. Their Achilles heel is the disc bearing, a mechanical part that wears out over time. Magnetic tape can last 30 to 100 years, according to Gerecke, though I recall some audiocassettes that didn't last a decade. Fortunately there's a hot new medium that freezes music forever in unchanging grooves of black plastic. The disc is read with a diamond stylus suspended in a web of magnets and can last a lifetime (or more) if treated carefully. It plays on all devices in the format, completely free of DRM. This format of the future is called VINYL. See tomorrow's blog for more details!