Data lost issue in Transcend Pendrive.

I had a similar situation happen the other day. I had a teacher come to me and say everything is gone off his usb drive. He normally works on a iMac at home and brought the drive into school. When he put the drive in the machine nothing shows up. He put it back into his iMac at home and nothing shows up there either on his usb drive. I went to this website and downloaded their open source data recovery software. It recovered every on his usb drive. http://www.cgsecurity.org/wiki/TestDisk_.... I would get the windows or GUI version and not the command line version. Its a lot easier to use.

Jim