If you need a screen recorder to record all of your trades then hou can try out du screen recorder. It has worked so far so good to me. Do not worry abou the watermark. It is free after all. You can get it frim the du official site or softonic, That wensite has almost evrything. I have to admit that the quality of videos is not that god but I do no think that it really matters. I do not see the point of recording forex in hd. The clearer the video then the more space it will take.
I use Vimeo. With Vimeo you can upload all videos to instantly and watch them online. That's a great advantage when you record long or many videos. Having them online is a lot more convenient than having them stored on your local hard drive.