Bad USB flash drive?

I have an 8GB USB flash drive that exhibits intermittent problems. I have tried to reformat several times and I get the following in disk utility when I format HFS+ (no journaling):
Verify and Repair volume “Drive-In”
Checking Non-journaled HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
Volume Header needs minor repair
Repairing volume.
Rechecking volume.
Checking Non-journaled HFS Plus volume.
Checking Extents Overflow file.
Checking Catalog file.
Checking multi-linked files.
Checking Catalog hierarchy.
Checking Extended Attributes file.
Checking volume bitmap.
Checking volume information.
The volume Drive-In was repaired successfully.
The "Volume Header needs minor repair" ALWAYS appears and it always seems to be "repaired"
Do I simply have a bad drive?

I did and still have problems. Basically I can write up to a certain point, anything written after it is corrupt - the file info is there, but the file cannot be accessed by any program.

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