Data loss after a few days, stick is no longer gemounted

I bought the 64GB USB stick commercially and was initially excited because the access times were better than my current document stick.
The joy clouded quickly, as occurred after a few loss of data and new files simply disappeared. Finally, the stick was no longer gemounted under Win7 and LED will slow down in front of him, regardless of whether you want to access it or not.

I sat for more than 10 years a Falshdrives different manufacturers and have not yet experienced a single mistake, already nothing what approach comes even close to the experience of the CnMemory 64GB flash drive.

Demand in Germany. Sales showed that probably must be damaged for unknown reasons, the firmware of the USB stick. I should just exchange the drive. Done.

Low-level formatting the drive also can not because he is no longer recognized correctly and systems gemounted on various Win 7, XP and Linux.

Therefore I can by buying these sticks only strongly advise against.

The feedback has nothing to do with the offering here dealer, I bought my stick as I said in the trade locally.

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Update December 2012:
The stick was exchanged easily with Chips and More in Freiburg.