DiskDigger recovers files from any type of media that your computer can read. such as USB flash drives, memory cards and hard disk drives. The types of files supported include BMP, GIF, JPEG, PNG, TIFF, DOC, PDF, MP3, AVI, WMV, OGG etc. DiskDigger is not a generic undelete utility. It works by scanning through each sector of the media and looking for “signatures” of the various file types. As such, it may be able to recover certain files that other generic undelete utilities are unable to.
Note: the current version is a nagware (unlimited though), but the originally completely freeware version wasn’t updated since 2012 (v0.8.3) – if needed, it can be downloaded from the original website