Re:Some facts off the top of my head... (Score 1)

This should do a good job of a lot of the things that JPEG (even at high-quality q) is currently failing on for us: photographs that contain a lot of bluescreen / greenscreen; pencil / pen artwork, etc. With JPEG, I get nasty haloes around foreground elements; these are very visible on a flat background such bluescreen or paper. JPEG also forces a mottled effect on the bluescreen due to color quantization I believe. DjVu appears to reduce or eliminate these undesireable side effects. I will be following its progress with interest (as long as it doesn't get the kiss of death from proprietary interests...)