Used OpenPuff for Windows?
Developer’s Description
OpenPuff is a advanced watermarking and Steganography, or data hiding, program capable of storing up to 256MB of encrypted data using an invisible copyright mark in pictures, video, audio, and flash files.OpenPuff supports many carrier formats: images (BMP, JPG, PCX, PNG, TGA),audio support (AIFF, MP3, NEXT/SUN, WAV),video support (3GP, MP4, MPG, VOB) and flash-Adobe support (FLV, SWF, PDF).
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