You’re assuming everyone in the world has access to and can afford the latest equipment, and has reliable high speed broadband etc. However as a lot of the world don’t, the optical disc will be around for some time to come, but you are correct that at sometime in the future it will die, as will the HDD drive, as they are both replaced with solid state media. (Just don’t expect it anytime soon)
Bill
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English Riviera:
Live entertainment, Real Ale, Great Scenery, Great Beaches, why would anyone want to live anywhere else (I�m definitely staying put).