Wikipedia
FileSalvage
FileSalvage is a data recovery product produced by SubRosaSoft.com Inc. It is a Mac OS X application used to recover lost data from hard disk drives, USB flash drives, CD-ROMs, and other media. FileSalvage is device and file system independent and supports recovery from drives formatted for all Mac OS X file system types, including HFS, HFSX and HFS+ as well as FAT12/16/32, NTFS/NTFS5, ext2fs and other file system types.