In the process of preparing videos for my tutorial I was using Microsoft's free program called Movie Maker. Well it's free if you bought Windows ;-). The biggest problem with it is that editing a 10 minute movie will take hours if not days (depending on your computer). So here's a tip - before any editing convert your movie to lower bit-rate.
It makes editing lightning fast and you will save a lot time and frustration by following this steps:
Done. You can now render your movie.
You may ask - how to create the low bit-rate file in the first place. Easy.
SET ffmpegEXE="c:\Programs\Media\ffmpeg\bin\ffmpeg.exe" for %%i in (*.mts) do %ffmpegEXE% -i "%%i" -vcodec mpeg4 -b:v 200k -acodec libmp3lame -b:a 64k "%%i.mp4"