Screencaster KAZAM how to record in H264 or which screencaster is better to choose?

Question

linux

Hi all! I was looking for "good" screencasters for Linux, and stayed on Kazam (installed from Aura in Arch), on one machine with an AMD video card - everything works fine, H264 codec is available, but on another machine with an NVIDIA video card - there is no choice of codec, only VP8 are available , RAW and a couple more with a long name, but no H264! I read on junipers - installed x264 - but still does not plow! The driver is proprietary. Tried to put free, but the situation is the same. How to solve this trouble? Or is there a more normal screencaster?