On 1/31/2024 6:14 PM, N5XMT wrote:

Being on the raspberry pi forums and also beta testing, I have not seen any instances of, or complaints about it failing verification.? If you are using the latest version, I would suspect your USB to Micro SD adapter or USB port.

Well I tried again, using the latest Imager downloaded today and the 64 bit Bookworm version and it failed verification as usual. "Error reading from storage.? SD card may be broken".

So I thought let's try to get some data.? I found a memory card tester called H2testw and ran it and sure enough, here are the results:

Warning: Only 14751 of 14752 MByte tested.
The media is likely to be defective.
14.4 GByte OK (30209326 sectors)
361 KByte DATA LOST (722 sectors)
Details:0 KByte overwritten (0 sectors)
0 KByte slightly changed (< 8 bit/sector, 0 sectors)
361 KByte corrupted (722 sectors)
0 KByte aliased memory (0 sectors)
First error at offset: 0x000000002bd92200
Expected: 0x000000002bd92200
Found: 0x2200220022002200
H2testw version 1.3
Writing speed: 7.74 MByte/s
Reading speed: 17.5 MByte/s
H2testw v1.4

Just a guess, but a loss of 361KB out of 16MB might be tolerable if you're recording video or other applications where a checksum isn't done...and this is a Toshiba branded TF card, not some bargain-basement special.???? So maybe the Imager is telling me the truth after all ;-)

73, Bob W9RAN