As long as it has a USB-A port, I think it will be good. We can’t seem to kill that one. ;)

yeah but the CD keeps being backwards compatible with DVD players, then Blu-ray, then UHD Blu-ray... these new 125tb discs are the same form factor again. i think we'll have CD players way longer than tape decks

Sometimes I scrounge around bargain tech and I see a vga port (is that a serial port? I can't remember) or the green/purple ports for a mouse and a ???? (keyboard????) and I am blown away because I forgot they existed. And do you remember that big fat fuckin' port that you put a printer on? Cause I remember having to undo, redo, undo, redo that fker a hundred years ago because it never seemed to connect right. But I can't even tell you WHERE I was messing with that. Maybe a library. I just remember it because it was the size of a harmonica (but not really).

Flash chip cells are basically tiny electron traps, they consist of a tiny stored charge surrounded on all sides by an insulator. When writing to the cell you fill it with some electrons via (much handwaving here) a method of quantum tunneling. You can then read the cell by sensing the internal charge without disturbing it.

When not in use eventually enough charge tunnels out of the cell via random quantum tunneling events for it to read nothing. This is worsened when things are hotter, so maybe keeping your flash chips in the freezer would help.

Consumer flash memory, I probably wouldn't expect more than 20 or 30 years of offline storage out of it. The older chips would last longer, because their cells are bigger, and you're not trying to read multiple charge levels per cell like the newer stuff.

Added edit:

Magnetic media probably has a higher chance of surviving longer. Floppies from the 80s can still be read, for example, but they are low density media. You'd want something that separates the drive system from the actual magnetic media to stop bearing or motor failure from being an issue , so tape would be a good idea.

The problem is, of course, that you could end up with media you can't read as nobody makes the hardware for it. Tape drives have gone through a dozen revisions in the last 30 years as capacity has increased, but as long as you have the same physical tape cartridge you should be ok.

M-Disc is a blueray compatible media that doesn't use dye and should have a life of hundreds of years. But who will have a blueray reader on hand in the 24th century? I've got a USB M-Disc compatible writer for my backups, but in 30 years will I be able to pull it out of a drawer and plug it into a USB Gen 15 port and have it work with whatever software I have then?

I think we're going to have to do the manual duplication process for a while yet, until we finally settle on some universal petabyte storage crystals or something.

Eeeeeh, I guess flash would loose charge in a few years anyway.

How about archival-grade Blu-ray? Those could last over 100 years.

New SLC flash can store data for about 100 years when kept at room temperature. The data retention time will drop with write cycles though. Consumer SSDs use TLC or QLC flash, which is only guaranteed for 1 year of offline data retention, but it will probably be good for several years if it's not worn out.

Or you could encode the hexdump to audio and press it into vinyl. But in this case, as well as the QR, i think, you'll have to keep some physical backup (that isn't encoded) of the decoding algorithms for QR or the audio, otherwise you just have some funky pixelart/bleepbloop sounds to enjoy but no data - if every other copy is gone... Well, you could spend the rest of your life trying to calculate it then?!