Update: Added section about CONVERTING video sessions below.
Quick bit of help here, because I'm not sure if everyone knows the best way to handle this if you want to record your progress while drawing in Photoshop, Manga Studio, Painter, whatever.
IF YOU ARE USING WINDOWSYou may have tried some of the screen recorders out there like CamStudio, FRAPS, or some free ones out there. You may have noticed, or had become frustrated with, the fact that many of these programs cause a significantly huge hit on your system's performance. When you try drawing in Photoshop, your tablet response comes to a screeching halt. Then you find a program that records without impacting your drawing performance -- only to find that the resulting video recorded at about 1 frame every 3 seconds. Then you tried FRAPS, then found out that 4 minutes of video resulted in a 3.2GB file. All of these are less than ideal.
A while back, I searched all over the net for a program that encoded video from my screen