Secret Layer Light: http://www.steganographypro.com/
Hide data into images http://youtube.googleapis.com/v/Mone0KpW-Eg
Extract data rom images http://youtube.googleapis.com/v/yIveoNArYjE
CryptoDisk (shareware - free trial) http://lib.giveawayoftheday.com/CryptoDisk_186851/
AloahaCrypt (freeware) http://lib.giveawayoftheday.com/AloahaCrypt_1438843/ creates a virtual encrypted disk within a file and mounts it as a real disk. The encryption is automatic, real-time (on-the-fly) and transparent. Parallelization and pipelining allow data to be read and written as fast as if the drive was not encrypted. Provides plausible deniability, in case an adversary forces you to reveal the smart card PIN. It has a hidden volume (steganography) with second smart card.The encryption are algorithms: AES-256, Serpent, and Twofish. Mode of operation: XTS.