Most of us love to watch high-definition videos on big screens and even on small screen mobile devices. But a high-definition video might consume too much of space on your device. And if you try to compress it into other formats, there might be a loss in the quality of video. Don't worry. You can convert MP4 to H.264 file format to get the same quality as it was before. Most importantly, you can save large space that the MP4 video might consume by converting it into H.264 file format without losing the quality.