A method of producing bit-patterned media is provided whereby a shell structure is added on a bit-patterned media dot. The invention is further a means of increasing the bulk, absorbency and pattern definition in an embossed cellulose web without losing softness in the web. A third sound sensor positioned on a perpendicular bisector of the connection line of the first sound sensor and the second sound sensor for detecting sound from the sound source to generate a third sound signal. A calculation of the distance from the object to the camera is based upon the sonar measurements. Some cycles may be controlled with a vector mode to scan to a predefined position within a block before moving to another block. In particular, the coded block pattern for chrominance and luminance are combined into a single parameter for the macroblock and jointly coded with a single variable length code.