Houndogk writes: "I came across this reading the news of the day at Tomshardware. This [article] talks about a new generation of CD-RW that promise to be 3x as fast and have 3x the capacity as current drives. It is also expected to scale to 4x and 5x." From the article: "[T]he premise of ML technology is the use of gray-scale disc encoding, with 3 bits per spot giving eight shades of gray. Under a microscope, the disc surface appears as a continuous blending of light to dark shading, versus the traditional disc appearance of either dark or bright spots." And what happens when we go to 24 bits per spot? ;) This announcement seems to partly answer GeoffM's quest for dual- or quad-density CD-Rs, and handily top Sony's moves to double-density.