Watched a 4k blu-ray last night. Let me know when streaming services are sending video with peaks of 100Mbps h.265 and audio with peaks of 4Mbps (and when I can get a home connection that can handle that). And when I can use streaming when utility power is unavailable and my telco DSL is too (they apparently don't have a battery at the remote terminal)
SD cards seem alive and well, although usually micro these days.
If you're including micro SD cards, there's literally one on my phone right now. And optical discs remain good for watching movies, although I agree they're on the decline everywhere else. The rest I haven't seen in forever.
I was not including SDXC or even SHDC cards, only SD. I am trying to find a maximum capacity SD card to use in a Palm T|X, either 1 or 2 GB. Back when SDHC first came out, I often ran into issues with 2 GB SDHC cards not working on older devices. I think being difficult to find is another criteria to qualify as obsolete.
The odd thing about high capacity SD cards in general is that they are generally used as fixed storage. I have a 256 GB card that I put into a 11" laptop when I bought it and I haven't seen it since. I haven't used a CF or SD card like a floppy since storage hit 4 GB.
I agree that I spoke too hastily about optical media. Even modern gaming consoles have optical drives.
The odd thing about high capacity SD cards in general is that they are generally used as fixed storage. I have a 256 GB card that I put into a 11" laptop when I bought it and I haven't seen it since. I haven't used a CF or SD card like a floppy since storage hit 4 GB.
If you were a still or video photographer, you would likely be using CF or SD cards like floppies every day still.
(Some of this has been changing with WiFi capable cameras and video cameras with USB-C ports for SSD's etc but SD cards are still very much A Thing for photographers)
[0] https://en.wikipedia.org/wiki/SmartMedia
[1] https://en.wikipedia.org/wiki/FlashPath