ONE OF THE BEST IS HELIX3 AND CAINE AWSOME PROGRAM ALSO GRAVEROBBER IS THE CORNERS TOOLKIT
Helix3 is a unique tool necessary for every computer forensic tool kit! Get the only tool with a Live and Bootable side for your investigation needs.
•A multi-platform LIVE side for three environments; Mac OS X, Windows and Linux with one simple to use interface
◦Make forensic images of all internal devices
◦Make a forensic image of physical memory (32 and 64 bit)
◦Determine if disk level encryption is turned on
•A bootable forensically sound environment to boot any x86 system
◦Make forensic images of all devices
◦Search filesystems for specific file types (i.e. Graphic files, Document files, etc)
•Several open source forensic applications to assist with data analysis including cell phone analysis
◦Sleuthkit
◦LinEn
◦Libewf + mount_ewf
◦Carvfs
◦cryptsetup
◦Truecrypt
◦lvm2
◦Scalpel
◦Foremost
◦LibPff
◦Volatility plus many plugins
◦moto4lin
◦gmobilemedia
◦gammu
◦gnokii
◦frag_find
◦pythonraw
◦ptfinder
Helix3 is only available through the e-fense forum. Become a member of the e-fense Forum to get support and learn from e-fense experts and other users of the number one computer forensic tool used by law enforcement, government agencies and computer forensic experts around the world.
YOU CAN MAKE LIVE CD'S FOR REAL COMPUTER FORENSIC
https://www.e-fense.com/store/index.php?_a=viewProd&productId=11
http://www.porcupine.org/forensics/tct.html
http://www.forensicfocus.com/alternatives-to-helix3