Yet Cohen said he had noticed that some of his CDs, especially the rewritable variety, are already beginning to degrade. "About a year and a half ago they started to deteriorate and become unreadable," he said.
And don't forget, if you're going to write on the cds, make sure you use a proper marker for that purpose, not of the usual permanent variety. These are known to eat the outer reflective coating over time, and render the disc useless.