Bandicam

Bandicam is the best Game, Video, and Desktop Screen recording software.

You can record WOW, Minecraft, iTunes, YouTube, PowerPoint, Webcam, Skype, Video chatting, Streaming video and desktop screen without lagging.

Bandicam compresses the recording video when recording and uses much lower CPU/GPU/RAM usage.
As a result, it has less lag and you can save your HDD and CPU.

Bandicam displays FPS numbers in the corner of the screen while it is active in the 'DirectX/OpenGL window' mode.
It also can record video at resolutions up to 2560*1600 in high quality (1080p full HD video can be made).

You can upload the recorded file to YouTube without converting because the recorded file size is extremely smaller than other software (1/5 ~ 1/20 video size).

Bandicam supports AVI 2.0, the maximum file size is unlimited as long as the local Hard Disk has free space available (Over 24 hours recording can be possible).