H.264 is a new standard for improved real-time video encoding. It provides better compression of video images, in part by using variable, small block sizes for motion compensation. This is, however, more computationally intensive, with 41 motion vectors for each one in H.263. Asish Thanawala and Bruce McNamara of Stretch, discuss how to move from H.263 to H.264 without a complete system redesign.
