Apple apps such as QuickTime Player, Photos, and Keynote work with many kinds of audio and video formats. Some apps prefer specific formats, but QuickTime movie files (.mov), most MPEG files (.mp4,.m4v,.m4a,.mp3,.mpg), some AVI and WAV files, and many other formats usually work in most apps without additional software. Older or specialized media formats might not work in your app, because the format requires software designed to support it. If that happens, your app won't open the file or won't play back its audio or video. You might already have an app that supports the format of your file.
If you don't know which of your installed apps to try, your Mac might be able to suggest one: • Control-click (or right-click) the file in the Finder. • From the shortcut menu that opens, choose Open With. You should see a submenu listing all of the other installed apps that your Mac thinks might be able to open the file. 
If none of your installed apps can open the file, search the Internet or Mac App Store for apps that can play or convert the file.
MOV (A filename extension for the QuickTime multimedia file format) MOV video file uses a proprietary compression algorithm developed by Apple Computer. Mac still remains supreme with the.mov and.mpeg file types. Naturally, MOV is the standard and best video format for Mac. Apple apps such as QuickTime Player, Photos, and Keynote work with many kinds of audio and video formats. Some apps prefer specific formats, but QuickTime movie files (.mov), most MPEG files (.mp4,.m4v,.m4a,.mp3,.mpg), some AVI and WAV files, and many other formats usually work in most apps without additional software.
Include these in your search: • The name of the media format. If you don't know the format, select the file and press Command-I to open an Info window. The format might appear after the label Kind, such as ”Kind: Matroska Video File.” • The filename extension, which is the letters shown at the end of the file's name, such as.avi,.wmv, or.mkv. Information about products not manufactured by Apple, or independent websites not controlled or tested by Apple, is provided without recommendation or endorsement.
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Smartphone / tablet / media player owners often face the problem of unsupported multimedia formats. If you don’t have a dedicated program to do this, you need to learn all sorts of specialized information like video resolution, aspect ratio, video codecs, etc. Luckily for you, there’s Movavi Video Converter, which offers more than 200 ready-made presets for a wide range of mobile devices, including the newest models of,,, Samsung, Nokia, Sony PSP, Android phones, Windows Phone 8, and more. All you have to do is select your device from the list and click Convert.
Want to show a video clip to your friends on Facebook or YouTube, or maybe embed a video into your blog post? Fortunately, there is no need to learn all the technical stuff about web-compatible formats, because Movavi Video Converter is a handy multimedia uploader as well as an application to change video formats! The Windows version of Video Converter can help you using a built-in application.
How to Change Video Formats To change a video format using Movavi Video Converter, just download the program for Windows or Mac and follow the simple steps below.