Similar software to what has already been suggested is MPEG Streamclip, which allows you to open a video, select all, copy it to the clipboard, then open another one and paste it. The problem with iMovie is that during importation the files are recompressed into Apple's intermediate codec, exploding the required file size for the project (tends to go into the GB range).

Now that both are imported, you can arrange them in the timeline of your project.Ĭheck the iMovie manual for more information on how to do this.

Very safe with no virus or advertisement brought in.Since those youtube videos probably come in a codec Apple software understands, you could open iMovie (comes with every mac), drag the mp4 files to the program and then concatenate them, with the addition of being able to edit the clips, adjust their sounds, etc. There is no special requirement for a system or browser. Convert media files like MP4 to any popular video format. Upload videos at one time and convert them at once. Customize the output MP4 file with multiple settings. You can customize the output MP4 files with various settings. It allows you to convert MP4 files to MOV format which is supported to play on QuickTime. When you encounter the situation that an MP4 file not playing on Mac, then Apeaksoft Free Online Video Converter is strongly recommended. Part 2: How to Play MP4 on Mac with Apeaksoft Free Online Video Converter In that case, you can choose a professional video converter tool. To settle the problem that the MP4 video file can't play on Mac, you can convert your MP4 file into a playable format so that QuickTime can recognize it. That is mainly because your MP4 video file has a codec, or your target MP4 file has been encrypted. Under this circumstance, you may receive the message that 'the movie could not be opened' sometimes. However, there are some MP4 videos that can't be recognized by QuickTime. Part 1: Why Can't You Play MP4 Video Files on Mac with QuickTimeĪs Apple's default media player, QuickTime can provide you the easiest way to play MP4 video files on Mac because it is part of the operating system.

Part 4: FAQs about How to Play MP4 on Mac.

Part 3: How to Play MP4 on Mac with Video Converter Ultimate.

Part 2: How to Play MP4 on Mac with Free Online Video Converter.

Part 1: Why Can't You Play MP4 Video Files on Mac with QuickTime.

Please read the following contents carefully. Why does this happen? What should you do? Here are the possible reasons as well as methods which will greatly help you with that issue. When you play an MP4 video file on your MacBook, there pops up a prompt reminding that 'This file contains a media which isn't compatible with QuickTime Player'.

How to play mp4 on macbook