Disk Digger is a free to use program which allows you to copy data from formatted or reformatted or even corrupted media drives including USB flash drives, SD / Compact Flash Cards / Memory Stick (etc) memory cards and hard disks.
This application supports files to recover such as images (JPEG, PNG, BMP, TIFF and GIF), documents (DOC and PDF), and multimedia files (MPG, MP3, WMV, MOV and more) and many other data formats.
You can even recover the data from reformatted drives and badly formatted drives which does not show up in windows under My computer, means those drives which cannot be assigned a drive letter in windows
You can choose files you want to recover like a portion of files Disk Digger finds, this free data recovery software support recovery data from FAT12 (floppy disks), FAT16 (older memory cards), FAT32 (newer memory cards and hard disks), NTFS (newer hard disks), and exFAT (Microsoft’s new successor to FAT32) file format.
It is a portable tool which you can run as portable data recovery software from any where, It has a single executable file that you can run from anywhere.