free multimedia

Let’s face it, we really need a free MP4 video converter: 1. I have recorded a very funny clip with my Sony 4K camera and would like to upload it to social sites to increase my followers but they tell me that they don’t accept UHD formats. I wonder if I can do sth with the MTS, AVCHD, MKV videos like convert video to MP4 free to make my video qualified for the video-sharing sites ? 2. Any HD free MP4 converter helps! I get an iPhone 6 Plus recently and the screen is really crisp. But how can I transfer my HD movies to the device? I know my iPhone accepts MP4 so any free video converter to MP4 recommended for this ? 3. I heard that YouTube rolls out the first 8K video so I rushed to have a sneak peek of how the FUHD videos look like. Disappointed at the poor internet so I downloaded the clip only to find that it’s not playable on the media player. I don’t know any format stuff but I know that MP4 is the most widely used formats for media players. So is there any free MP4 ...