Need a good Screen Recorder

[CramBoom]

Camtasia has always worked very well for me. Robust (but basic) editor, very little quality loss, low system requirements. Also, it has lots of audio recording options.

 

[PET]

I use Xsplit. I use it to live stream. I use it to record games. I use it to record my webcam. I use it to record my webcam + some game.

If I only want to record a game in high quality, DXTory is the choice to go. It can record different audio channels + you can use whatever codec you want.