Debut 2.05 has a "Record Screen As" option called "Fast Capture" that may be worth trying. It seems to be a modified version of the "Record Screen As" avi option with a (lossless) HuffYUV codec ... both "Fast Capture" and "avi HuffYUV (Native)" create hugh files when I set the framerate to 30 fps (20GB for 30 mins of capture of a 640x480 screen area ?) . As far as I can tell, there doesn't seem to be much difference between these two options.
nb. even though both these "Record Screen As" Video options may have smoother motion compared to other options, they still aren't as smooth as the o