Hi, maybe you can be interested in checking/reviewing/adding this
freeware - portable steganography & watermarking tool

Languages: En / It
Compatibility: Windows 2000/XP/Vista/Seven
License: Freeware.
Author's description:



· Images support (BMP, JPG, PCX, PNG, TGA)
· Audio support (AIFF, MP3, NEXT/SUN, WAV)
· Video support (3GP, MP4, MPG, VOB)
· Flash-Adobe support (FLV, SWF, PDF)
· Windows Executable support (EXE, DLL)
· Multiple carriers chains (up to 256Mb hidden stream)
· Random per-block-cryptography (8 open-source algorhythms)
· Strong cryptography (512bit key, password hex extension)
· Data scrambling & Whitening
· Adaptive LSB & Bits selection level
· Multithread support (up to 64 cpus) = Faster processing
· Simplified interface

Website: http://members.fortunecity.it/blackvisi ... FFV300.HTM

The author
Eng. Cosimo Oliboni