data recovery encrypted file

Interesting link.  Is that $29.95 app one where you download it, it scans the drive and shows all the files it can recover, but doesn’t allow you to actually recover them until you pay for the app? 

I would try the FREE recovery apps shown in this posting http://forums.sandisk.com/t5/All-SanDisk-USB-Flash-Drives/How-to-recover-the-data-from-Cruzer-Micro-4GB-Accidental-Erase/m-p/294499#M4996 before trying your app.