CDs and DVDs might have a long-ish tail. Public libraries lend music on compact discs (which I listen to in the car and sometimes on a stereo) and movies on dig

CDs and DVDs might have a long-ish tail. Public libraries lend music on compact discs (which I listen to in the car and sometimes on a stereo) and movies on digital video discs. I admit the convenience of so much music streamed via pocket computers, but there's also something healthy about being constrained by an album.