The Demise of the CD

Just about the time we got used to 8-tracks, they came out with cassettes. We no sooner got a big supply of our favorite cassettes when they came out with CD's and a cassette player became obsolete. Now I guess the CD is on it's way out and everything is DVD. Our record player is an antique but it really works good and the radio will tape records onto cassettes. However, that doesn't help much. We have an old radio that will play the cassettes and you can fill it with batteries and take it along but it's too much trouble anymore. Oh yes, and the good old VCR bit the dust too so I am hanging onto the ones I have until they quit. When does this all end?