I've got a video in .m2ts whose size is 294.3 Mb. I wanted to remove the sound of it, add a MP3 song instead and then post it in youtube. So I downloaded a video editor (kdenlive, because I use Ubuntu). I did remove the sound of the original video and added the MP3 instead. When I rendered the video, I had only a few choices. Either keep the video quality or not. I tried both. Without keeping the video quality I get a rendered .mov file of around 64 Mb with a horrible quality and it took 25 minutes to render. When I keep the quality... I get a .mp4 file of 2.0 Gb! It still took around 25 minutes to render. This means about 7 hours of uploading to youtube, assuming I'm not browing the web at the same time. Is there any way I can get a rendered video of about 300 Mb, or at least less than 1Gb without altering the video quality? (Supposed to be 1080 quality for youtube).