In article , lid
says...

On Thu, 17 May 2018 07:49:55 +1000, Peter Jason wrote:

Do these thumb drives last forever, or should
their contents be transferred to the latest USB
drives?

I can only speak from personal experience. I've got several thumb
drives, all from SanDisk.

- 512MB Cruzer Micro
- 4GB Cruzer Titanium
- 16GB Cruzer Contour
- 64GB Extreme (USB 3.0)
- 128GB Extreme Pro (USB 3.0)

I ordered the 64GB and 128GB drives from a shop in Hong Kong (through
eBay).

The 64GB drive is used /all the time/. I transfer MKV files to it, watch
them on my BluRay disc player and then I delete them. I've been doing
that for years now. Never an error. On a rare occasion, the MKV freezes
when playing, but that could also be caused by the file itself or the
disc player. Rebooting the disc player always solves the problem.

I once bought a (supposedly) 4GB flash drive from DaneElec. Never got it
to work properly and it certainly wasn't 4GB.

Bought 5 Duracell branded 64Gb flashdrives. Three of them have gone into
"write protected" mode and can't do anything but read the corrupted data
(some of it) that you can view a listing for.