try one of these softwares...
Pen Drive Data Recovery Software
http://www.data-recovery-usb-drive.com/usb-drive/pen-drive-data-recovery.html
http://www.filestube.com/9yt6nMpER1dCnrOHDiXSFS/Pen-Drive-Data-Recovery-Crack.html
Data Doctor Recovery Pen Drive...
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