A CD is almost certainly going to last longer than, say, a floppy disk. But it's not a perpetual medium, and depending on CDs as the ultimate archive of data carries a lot of risks in the mid-to-long-term.
Reshared post from +NPR
How Long Do CDs Last? It Depends, But Definitely Not Forever #npr
How Long Do CDs Last? It Depends, But Definitely Not Forever
Preservationists are worried about troves of records stored on what was once considered a durable medium: the compact disc. Many discs can last for centuries — but most won’t.