Testing USB Flash drive - what Serious Error means?

[zalekbloom]

I am testing my 16BG USB Flash drive. During a test I received 5 Serious Errors - out of 16gb only 12 gb were verified.

I used options:
Random data pattern
Slow drive threshold 1 mb/sec

Does it means I need to get rid of flash drive?

Thanks,

Zalek

[passmark]

Depends what the errors were? Brief slowdowns aren't too much of a worry with USB drives.

[zalekbloom]

Depends what the errors were? Brief slowdowns aren't too much of a worry with USB drives.

DETAILED EVENT LOG
******************
LOG NOTE: 2009-07-28 22:17:09, Status, PassMark BurnInTest V6.0 Std 1011
LOG NOTE: 2009-07-28 22:17:09, Status, Main Tests started
SERIOUS: 2009-07-28 22:19:30, Disk, C: Data Verify failure
LOG NOTE: 2009-07-28 22:19:30, Disk, File: C:\BurnInTest test
files\~bittestC00001, Value Read: 36, Value Expected: 38, Offset 583,
Ops: 501219328
LOG NOTE: 2009-07-28 22:19:30, Disk, Disk Error (C:): Data Verify
failure in Cycle 0 with pattern Random data pattern
SERIOUS: 2009-07-28 22:21:58, Disk, C: Data Verify failure
LOG NOTE: 2009-07-28 22:21:58, Disk, File: C:\BurnInTest test
files\~bittestC00002, Value Read: 168, Value Expected: 170, Offset
905347, Ops: 1003487232
LOG NOTE: 2009-07-28 22:21:58, Disk, Disk Error (C:): Data Verify
failure in Cycle 1 with pattern Random data pattern
SERIOUS: 2009-07-28 22:24:33, Disk, C: Data Verify failure
LOG NOTE: 2009-07-28 22:24:33, Disk, File: C:\BurnInTest test
files\~bittestC00003, Value Read: 145, Value Expected: 147, Offset
106807575, Ops: 1605369856
LOG NOTE: 2009-07-28 22:24:33, Disk, Disk Error (C:): Data Verify
failure in Cycle 2 with pattern Random data pattern
LOG NOTE: 2009-07-28 22:25:21, Status, Test run stopped

Thanks,

Zalek

[passmark]

The drive is bad.
It might even be one of the fake USB drives (http://www.passmark.com/support/bit_fake_USB_detection.htm) that are on the market.