Dictation.
Here are some personal observations. A while back I purchased a quantity of cheap flash drives from an unknown source. Most of them eventually failed one way or the other. However, a few of them have survived down to this day.
I also have purchased a few of the famous brand-name drives, and these appear to be always reliable. But, I do have one exception among these drives. One of these drives I have purchased does not reliably work in one of my MP3 players that I bought more recently.
One would think that by now the manufacturers would've sorted out these problems they have switched flash drives and the interface. But it looks like quality issues are still out there, especially with of low cost unknown manufacturers.
But it is surprising that the famous brand-name drive would give you troubles. There is the possibility that it was a fake or bogus drive. That is, it may have been re branded by somebody or it may have been taken out of the trash bin.
I think mechanical strength might be a flash drive reliability.
Videos about Kingston .USB flash drives. Perhaps it may be of some help.
https://www.youtube.com/watch?v=qOb7tuhHRPoAlso, see this:
The Best USB Flash Drives