Get it for FREE!
Recently I have intalled windows 8 (don't hate!) in my computer. Until then I used
Fraps to record my screen while not in-game because in game I used
Dxtory. After some research, some trials, and some errors, I found that Bandicam is the way to go if you want to screen record. It has a amazing framerate, above 25, unlike similar programs, it offers some flexibility (record in-game, desired area or fullscreen), and it is really simple to use.
Another screen recorder compatible with windows 8:
OBS