Bob,
Have you tried exporting your log to your C drive first, then copying it to the thumb drive?
I just exported my 40,000 QSOs to an ADIF file on the C drive and it took a little over 30 seconds to produce a 14MB file. I've not tried to copy it to a thumb drive, but my guess is it would be a bit slower.
Worth a go.
?
John
G4DRS
