PhotoRec ignores the file system and goes after the underlying data, so it will still work even if your media's file system has been severely damaged or reformatted. PhotoRec is file data recovery software designed to recover lost files including video, documents and archives from hard disks (Mechanical Hard drives, Solid State Drives.), CD-ROMs, and lost pictures (thus the Photo Recovery name) from digital camera memory.
PhotoRec, Digital Picture and File Recovery