So what file file formats does iMovie support? Check out the below formats table provided by Apple. Depending on how you got your video files, the format varies from time to time. There exits tons of video formats in the world. However, The real world is always complex. If your video are saved in these formats, there is not any problem to import into iMovie for editing. Now the most widely supported file format is MP4 with h.264 video and ACC audio contained. Fortunately, it's better now than decades before. Thanks for any help.The media format compatibility is a worldwide difficult problem that has not been fixed. At first he was recording at 4K, but those files were too big to use & I was told unnecessary since uploading to YT. Any idea what is causing this import problem from icloud drive? His current settings are 1080p and 60fps. If there was enough space on the ipad, we would simply go this route. What is further perplexing is that I CAN import the same mp4 file directly from My Photos into imovie with no problem. This mp4 file cannot be used by imovie.' No matter the file size, this happens. When trying to import the mp4 files from icloud Drive into imovie, we get this message: 'Scanning complete. I thought the easiest solution would be putting all the mp4 files into icloud drive, and importing into imovie to edit. He doesn't have any $$ left to spend on a new ipad, macbook or pc video editor. The ipad only has 1-2GB free, clearly not have enough storage for these large video files, and my computer is an older pc with no video editing software. He loves the Osmo Action, but we didn't realize there would be so many issues simply getting these files into imovie.

Up until now, he was using an older ipad mini 2 to video and imovie to edit and upload to YT. My son saved up for many months to get this Osmo Action to mount on his Traxxas RC rock crawler (he has a YouTube channel).

Imovie import mp4