White Noise Storm is a very effective steganography application for DOS. White Noise Storm includes an encryption routine to randomize the bits within an image. The software uses the least-significant bit approach and applies this method to IBM Paintbrush (PCX) files. The main disadvantage of applying White Noise Storm's encryption method to steganography is the loss of many bits that can be used to hold information. Relatively large files must be used to hold the same amount of information that other methods provide with much smaller cover images.