Devices in question are or were:
Galaxy S3 32GB Pebble Blue with stock rom 4.1.2 JB
Iriver E200 16GB charcoal gray with FW 1:17
PSP 3004 with 6.60 FW means Photofast cr 5400
Nintendo 3DS enclosed by SD SD card adapter
And two more devices that I should not call here / can. :)
In principle, all memory cards are formatted using the respective device and if these devices have been offered no formatting option (looking at you IRIVER), brought by trick on the cor- rect file system.
All devices listed above could (can) read the memory card and I have to date still can not detect any failures or corruption / corruption of data.
Info only on the edge of the way, even the PSP eats up 128GB with no problems, 256GB I have not tried!
This model here has a UHS CLASS -1 qualification and it really brings out his 10 MByte / s over.
In other card readers and other computer and conditions even higher write rates are vielleich possible.