In the 1990s, dvds replaced audiocassettes and floppy disks as the storage media of choice for music and computers. at which stage of the product life cycle is the dvd today? market introduction market immaturity market extinction sales decline

Sales decline ... they are still used, but many people just opt for digital everything nowadays. VHS tapes are the latest media storage device to hit market extinction; it's incredibly hard to find them anywhere, and they are definitely not sold en masse. DVDs are still around, just nowhere near as popular as they once were.