32gb Cruzer SanDisk USB drive - 'Windows cannot read from this disk......'

I’ve been using my 32gb Cruzer SanDisk USB drive with no problem at all.

Yesterday when I plugged it on a PC, it brought out 2 Drives as usual, 1 is CD Drive (E) and the other is ‘Removable Disk’, but it does not autorun to ask for password.  When I double click the CD Drive (E) to run the LaunchU3 application, it is now giving me a warning message saying 'Windows cannot read from this disk.  The disk might be corrupted, or it could be using a format that is not compatible with Windows.'

I try to use the USB drive on different computers but same message appears.  I need all my files in it… PLEASE HELP…