blog.crox.net

Homepage: http://www.cgsecurity.org/

Description in portage: Multi-platform tool to check and undelete partition, supports reiserfs, ntfs, fat32, ext2/3 and many others. Also includes PhotoRec to recover pictures from digital camera memory.

Installation (Gentoo Linux amd64):

echo 'app-admin/testdisk ~amd64' >> /etc/portage/package.keywords
echo 'app-admin/testdisk jpeg ntfs' >> /etc/portage/package.use
emerge -av app-admin/testdisk

To use it, just run 'photorec' as root in a shell window. Despite the name, photorec will find and recover many files, not only pictures. You'll find the full list on the PhotoRec homepage.

I haven't tried TestDisk yet, but PhotoRec has been useful several times already.