Summary :

• Convert Dvdmedia To M4v
• M4v To Mp4 Mac
• Free M4v Video Converter For Mac Download

Free Video Converter provides the best solution to convert any video files to MP4/MKV/MP3, etc. For free for Mac and Windows users. You can also edit the video before converting. To convert common M4V videos to MP4, you can find a lot of video converter software available in the market. But if you are looking for a M4V converter that is clean, fast, and easy to use, then Joyoshare Video Converter for Mac should be your first priority. Besides converting M4V to AVI with Leawo Video Converter, you can also go online and use online video converter to convert M4V to AVI Mac free There are a lot of great online video converting websites, and I would recommend convert-video-online.com, it's a practical Online M4V to AVI Converter Website with a straightforward interface.

M4V is a file format for videos. Though M4V is not as popular as MP3, or MP4, it is used sometimes for keeping video data. According to users’ feedback, we found there is a great demand for file format conversion from M4V to MP3. That’s what I’ll focus on in this article: the best free and online converters to use for converting M4V to MP3 (or vice versa).

Some people are asked to change their video format from M4V to MP3 in some cases. But the problem is they don’t know what the M4V file format is or how to convert M4V to MP3 (or another format). Taking that into account, I decided to introduce the M4V video format to you and show you how to open it on Windows and Mac. After that, I provide several ways to help you convert M4V to MP3.

What Is M4V

M4V is a video container format developed by Apple. Based on the MPEG-4 video container format, M4V is very similar to the format MP4 (MPEG-4 Part 14). You can find M4V format easily in movies, TV shows, and music videos that you can download through the iTunes Store. M4V videos can contain audiovisual and multimedia data and the file extension of it is .m4v.

Extended reading:

The main differences between M4V and MP4 video formats lie in the DRM copy protection of Apple and the treatment of AC3 (Dolby Digital) audio:

• W4V videos can be added with Apple’s FairPlay DRM protection to prevent unauthorized distribution of the file.
• Anyone’s attempt to view or copy M4V files on a device that isn’t made by Apple (like iPhone, iPad, and iPod) will be declined.

The FairPlay is a DRM (Digital Rights Management) technology created by Apple Inc. to protect copyrighted works sold through iTunes Store. Only the authorized devices are allowed to play the DRM-protected content.

How to Open M4V Video Files

M4V is the main file format used by Apple to encode the video files you may purchase or rent from the iTunes store; that’s why the M4V file is also known as the iTunes video file.

Open M4V Video without DRM

Convert Dvdmedia To M4v

It’s very easy to play an unprotected M4V file on your computer. The methods for playing M4V files are the same as those for playing MP4 or MP3.

You only need to follow this guide to play an M4V video without DRM on Windows:

1. Navigate to the M4V file on your device.
2. Double click on the M4V video you want to play.
3. Wait until the file is playing in Windows Media Player or another media player you set as default.

Please follow these steps to play the M4V video on Mac:

1. Locate your M4V file in the Finder.
2. Control click or right click on it.
3. Select Open With.
4. Choose a player from the listing apps that your Mac thinks might be able to open the file.

QuickTime Player works with common kinds of audio and video formats including M4V.

Open DRM Protected M4V Video

However, if you want to play a DRM-protected M4V file, you must make sure that your device is authorized (via iTunes and QuickTime) with the account that was used to purchase or rent the video before.

What players can be used to play M4V videos protected by FairPlay DRM?

• Apple iTunes
• Apple QuickTime Player
• RealPlayer
• Zoom Player
• MPlayer
• DivX Plus Player
• Nero Showtime
• Media Player Classic
• K-Multimedia Player
• VLC media player

M4V videos using FairPlay DRM will be identified as 'AVC0 Media” in QuickTime Player on Mac.

Do you need a free DivX converter?

Do you need a VLC converter?

About MP3

MP3 is a file format for coding digital audio which uses a form of lossy data compression. Formally based on the MPEG-1 Audio Layer III or MPEG-2 Audio Layer III, MP3 now becomes a very popular audio format supported by most devices, systems, and applications.

• Originally, MP3 was defined as the third audio format of the MPEG-1 standard.
• Then, MP3 was retained and further extended to be defined as the third audio format of the subsequent MPEG-2 standard.
• Later, MP3 was extended to better support lower bit rates and defined as the third audio format of the MPEG 2.5 standard.

The MP3 audio format designates files containing an elementary stream of MPEG-1 Audio or MPEG-2 Audio encoded data. No other complexities of the MP3 standard are included.

If you only need the audio data of a video file, you can convert a video file format to an audio file format. Some people said they want to convert M4V to MP3. What should they do? There are several ways available for users to finish the conversion from M4V to MP3.

Method 1: Change File Extension

If you have an M4V video file without DRM, you can change .m4v to .mp4 to directly convert the video to MP4 format. Why? That is because both M4V and MP4 are based on the MPEG-4 container format, so they are very similar to each other.

How to change an .m4v file to an .mp3 file? This method is also available.

How to Change .m4v to .mp3

Step 1: Show File Extension

On Windows:

1. Press Windows + E to open File Explorer (previously known as Windows Explorer).
2. Select View from the top menu.
3. Click Options and choose Change folder and search options. You can also click on the Options icon directly.
4. Shift to the View tab at the top.
5. Look for the Hide extensions for known file types option and uncheck it.
6. Click on the Apply button and then the OK button.

If you want to hide filename extensions, please repeat this process to check Hide extensions for known file types again.

On Mac:

1. Navigate to your M4V file and select it.
2. Click on the top File menu and choose Get Info.
3. Look for the Name & Extension section and click on the arrow icon to expand it.
4. Deselect Hide extension.

How to show extensions for all files?

Click Finder -> select Preferences -> click Advanced -> deselect Show all filename extensions.

If you want to hide filename extensions again, please repeat the above steps and then select Hide extension or Show all filename extensions.

Step 2: Change .m4v to .mp3

On Windows:

1. Open File Explorer.
2. Navigate to the target M4V video.
3. Right click on it and select Rename.
4. Change .m4v to .mp3.
5. Press Enter.
6. Click Yes in the pop-up window to confirm the change.

On Mac:

1. Open Finder.
2. Navigate to the M4V file you want to change the extension.
3. Click on the file name twice. This is not a double click; there needs to be an interval between two clicks.
4. Type .mp3 to replace .m4v.
5. Press Enter (or Return).
6. Confirm your action in the pop-up window.

Method 2: Use Local M4V Converter

M4V Converter for Windows

There are a lot of free video converters available for you. You should download a reliable one that won’t bring damage to your system; please make sure it supports the M4V file format.

#1. MiniTool Video Converter

Step 1: please download the setup program directly by clicking on the button below or via visiting the converter introduction page.

Step 2: navigate to the downloaded setup file and double click on it. Then, follow the on-screen instructions to finish the software installation process. You can choose from fast installation and custom installation.

Step 3: start the software by clicking Start Now at the end of the installation or double clicking on the software icon manually.

Step 4: convert the M4V video file to MP3 format.

1. Click on the Add Files button at the top left or the big icon in the middle.
2. Search for the target M4V video in the pop-up Import Media window.
3. Select the file and click on the Open button to load it into your software.
4. Click on the edit button after Target to specify a File Name and Output path.
5. Click OK to continue.
6. Click on the edit button within the dotted box below the Target.
7. Shift to the Audio tab -> select MP3 from the left sidebar -> choose a quality level (for example, High Quality) from the right pane.
8. Click on the Convert button at the right end and wait for the converting process.
9. When the progress bar goes to 100%, the conversion is finished. You’ll see a Success notification.
10. Shift to the Converted tab and click on the Show in folder button to view the converted MP3 file.
11. You can also navigate to the storage path you set manually to check the file.

The steps to change M4V to MP4 are similar. Besides, this free converter also allows you to convert AAC to MP3 or the video/audio file in many other formats to MP3.

#2. iTunes

iTunes to MP3:

1. Download iTunes for Windows and install it properly on your PC.
2. Run iTunes and select Edit from the top menu bar.
3. Choose Preferences from the drop-down menu.
4. Now the General tab is checked.
5. Click on the Import Settings button.
6. Select MP3 Encoder from the drop-down menu of Import Using-> click OK -> click OK again.
7. Add M4V file to your library: select File -> choose Add File to Library -> select the target M4V video -> click Open.
8. Convert the M4V file: select the video -> choose File -> navigate to Convert -> click Create MP3 Version -> wait.

M4V Converter for Mac

Both iTunes and QuickTime Player can help you convert M4V to MP3 on macOS. Besides, there are various other converters provided for you to choose from.

#1. iTunes

iTunes is a good MP3 converter for Mac; it allows you to convert M4V to MP3, convert M4A to MP3, or convert other file types to MP3 in iTunes.

How to convert iTunes to MP3:

1. Open the Apple Music app.
2. Select Music from the menu bar.
3. Choose Preferences.
4. Go to the Files tab.
5. Click Import Settings.
6. Select MP3 as the target encoding format and click OK.
7. Add the target M4V video to your library.
8. Select the video -> choose File -> choose Convert -> click Create MP3 Version -> wait.

#2. QuickTime Player

1. Open QuickTime Player on your Mac.
2. Select File.
3. Navigate to Export.
4. Select Audio Only.
5. Give the file a new name and make sure MP3 is selected as the export format.
6. Click Save and wait.

Method 3: Record Your Screen

Even if you can’t open the DRM-protected M4V video in MiniTool Video Converter, you still have another choice to convert M4V to MP3 – playing the M4V file using iTunes (or other players) and recording your screen; then, save & convert the video to MP3 format.

Step 1: Play the M4V Video

You should navigate to the M4V video on your computer. Then, use the ways mentioned earlier to open and play the video.

Step 2: Record Your Screen

MiniTool Video Converter also has a Screen Record feature to help you capture a video.

1. Launch MiniTool Video Converter.
2. Shift to the Screen Record tab.
3. Tap Click to record screen.
4. A MiniTool Screen Recorder window will pop up.
5. Choose Select region and select the M4V video playing area.
6. Click on the Record button.
7. Wait for the 3-seconds countdown.
8. Play the target M4V video before it starts to record your screen.
9. Press F6 to end the record.
10. The recorded video will be saved to MP4 by default (you can change it in Settings).
11. Right click on the MP4 video you get and select Open folder to know its storage path.
12. Repeat the steps mentioned in Method 2 to convert MP4 to MP3 in MiniTool Video Converter.

Also, you may use other screen capture software to record the M4V videos and then convert them to MP3.

Method 4: Use Online M4V to MP3 Converter

You can also open a web browser on your computer and search for an online M4V to MP3 converter. Take Google Chrome as an example:

1. Open Chrome as you usually do.
2. Visit www.google.com.
3. Type M4V to MP3 or M4V to MP3 converter into the search box.
4. Press Enter.
5. Click on the search results listed to access corresponding online converters.
6. Follow the on-screen instructions to finish converting M4V to MP3.

Conclusion

M4V is a special video format since it may be protected by Apple’s FairPlay DRM. Considering it’s not so easy to open DRM-protected M4V files, I introduced the detailed steps to open it at the beginning.

Besides, M4V is a video format not as popular as MP4, MOV, or WMV. Sometimes, users may need to change M4V to MP4 or convert M4V to MP3. So I summarized 4 different methods and various useful M4V converters to help them with the conversion.

If you are looking into how to convert M4V to MP4 on Mac, Windows, or web, then you've come to the right place.

As a member of the closed Apple ecosystems, M4V is primarily used for storing the free or paid videos that you get from the iTunes Store and is constrained to play on iTunes and QuickTime Player in theory. However, there are bound to be times you want your M4V movies or TV shows to be available on an Android smartphone, Windows 10 PC, and other devices in your arsenal. And unlike the M4V file that can only be recognized by limited devices, MP4 can play on all prevalent devices and media players.

Thus, by converting M4V files to MP4, you can enjoy the favored iTunes movies or TV shows everywhere. The good news is we can easily convert M4V to MP4 by using VLC, HandBrake, and a few other offline and online M4V to MP4 converters. Keep reading. We are going to show you how to convert M4V to MP4 on Mac, Windows, and web by using 7 free and paid M4V to MP4 converters.

How to Convert M4V to MP4 with the Best M4V to MP4 Converter

VideoProc Converter is without a doubt the best M4V to MP4 converter available on Windows and Mac. Beginners can make usage of the tons of ready-made profiles to convert M4V to MP4 or other formats within a simple click. Advanced users are not left out in the cold either as this flexible video file converter provides with a raft of options to adjust the video parameters. This amazing M4V to MP4 converter supports the level-3 GPU acceleration tech, letting you convert M4V to MP4 at speed up to 47X faster than the real-time playback. Some of it's highlight features are:

• Batch remux or convert M4V files to MP4, MKV, AVI, and another 420+ formats [No Quality Loss]
• Easily customize the video properties and metadata information for the exported MP4 video.
• Enable to convert the DRM protected M4V to MP4 when working with DearMob iPhone Manager.
• It's also a versatile video editor, robust movie downloader, losslessly video compressor…

Follow the below steps to learn how to convert M4V to MP4 on Mac, note that the PC version functions almost the same.

Step 1. Import the M4V Video(s)

After free download and install VideoProc Converter on your PC or Mac. Launch it up. Click on Video, hit + Video, and then you select one or multiple M4V files to this handy M4V to MP4 converter.

Step 2. Set MP4 as the Output Format

Navigate to the bottom of the main interface to find H.264 MP4, HEVC MP4, and a few other options that take MP4 as the container format. You can choose either of them to achieve the purpose of changing M4V to MP4.

Suppose you need to tweak up the parameters of videos, hit the gear icon on the top right of the MP4 option to enter the property setting tab. In the new tab, you can customize video quality, bitrate, resolution, sample rate, aspect ratio, and many other things.

Step 3. Convert M4V to MP4 on Mac

Once you've applied the needed settings, click on Done and hit Run to enable VideoProc Converter convert M4V to MP4.

Tips:

Suppose you need to convert DRM protected M4V videos to MP4, you then need to work with DearMob iPhone Manager to remove the DRM protection.

How to Convert M4V to MP4 for Free: Mac and Windows

Don't want to fork hard-earned cash to convert M4V to MP4? Luckily, there are tons of open source and free video converters that can help you convert M4V to MP4 on Mac or Windows 10 without paying a penny. Click the below link to fast learn how to convert M4V to MP4 with the favored tool.

How to Convert M4V to MP4 with VLC

VLC media player, designed as a multiple media player, is also capable of accomplishing simple video conversion, compression, and edits jobs. Then can VLC convert M4V to MP4? The answer is: Yes, absolutely. Here's how:

Step 1. Go to the official site of the VLC media player to download and install it on your PC, Mac, or Linux machine.

Step 2. Click on the VLC icon on your computer to launch it up. Go to its top menu, click on Media, and hit Convert/Save.

Step 3. On the new tab, choose Add, pick up the M4V file that you need to convert to MP4 from your computer, and then select Convert/Save.

Step 4. Navigate to the drop-down list of Profile to find out over 20 presets provided by the VLC media player.

Since you need to convert M4V to MP4, there you should choose Video – H.264 + MP3(MP4) or Video – H.265 + MP3(MP4). The previous option high better compatibility, while the latter can minimize the storage space taken by the output MP4 file.

Advanced users can click on the grey tool icon to enter the Profile edition panel. There you can click on Video codec to change the bitrate, quality, frame rate, resolution, filters... By clicking on Audio codec or Subtitles, you will enter the panel for changing audio parameters or subtitles.

Note:

We don't advise beginners to customize the output formats as there are some video and audio codecs only wrapped by particular containers, but VLC media player won't exclude the incompatible video codecs from the available codec lists. This may lead to plenty of errors. For instance, you are allowed to choose the VP8 codec when you choose MP4 as the capsule format, but VP8 should only be included d in the WEBM container. Finally, you're going to get an unplayable video file.

Step 5. Click on Save. Select Browser to set an output folder. Hit Start to activate VLC media player transcoding M4V to MP4.

Cons of Converting M4V to MP4 with VLC

• Won't convert DRM protected M4V to MP4.
• Consum over 80% CPU resource when the conversion comes with the change in the codec.
• Lack presets for specfic devices or socia medias.

How to Convert M4V to MP4 with HandBrake

HandBrake is an open-source and cross-platform program. With an extensive list of conversion features, it is one of the most feature-rich video converters in the market. So can HandBrake convert M4V to MP4? Yes. HandBrake not just lets you convert M4V to MP4, but also allows you to transcode MP4, MKV, and a lot of other videos to M4V.

Step 1. Once you install HandBrake on your Windows 10, Mac, or Linux, open it up. Drag the M4V files to its main interface. You can also hit on Folder (batch scan) or File to import the folder contained M4V files or load up the individual M4V file.

Step 2. HandBrake automatically saves videos that come with AV3 audio, SRT subtitles, or chapter markets as M4V files. Then how to change HandBrake format from m4v to mp4? Kindly go to Tools, choose Preference, and change the setting of MP4 File Extension from automatically to Always use MP4.

Step 3. Go back to the main interface of HandBrake, choose MP4 as the Format. If necessary, you can hit Dimensions to change the video length and width pixels, choose Filters to denoise/deblock/rotate M4V videos, tap Video or Audio to change codec related parameters…

Step 4. Tap Browse to designate the output file folder. After that, you hit Start Encode to let HandBrake converting M4V to MP4 on your Windows, Mac, or Linux system.

Cons of Converting M4V to MP4 with HandBrake

• May eat up your CPU and memory resource when you convert the M4V to H.265 MP4 or MPEG-2/4 MP4.
• The non-user-friendly interface is reminiscent of some 80S things.
• You are only allowed to convert M4V to MKV, MP4, and WebM.
• DRM protected M4V iTunes can't be transcoded to MP4.

How to Convert M4V to MP4 with Prism Free Video Converter

Prism Free Video Converter comes with an easy to navigate exterior which enables you easily transcode or remux from M4V to MP4. A standout feature of Prism Free Video Converter is the support of GPU acceleration tech. And this allows you to turn M4V to H.264/H.265/MPEG4 MP4 without blasting up the CPU resource. It's quite unfortunate that this free video converter only works on Windows, but hey, it's free, so we can't judge.

Step 1. Click on Add Files to feed in the source M4V files from your computer to Prism Free Video Converter.

Step 2. Navigate to the bottom of the main interface and find the option box of Output Format and choose .mp4. This will lead you to a new File Options panel. There you can change the compressor from the default H264 to H265 or MPEG4. Since H264 is one of the most compatible formats, you can keep this value as default.

If you want to change the video resolution, hit Video Output Options, and change the value of Width and Height.

Step 3. Tap OK to confirm the settings on the File Option panel. Click Browse to choose the folder used for holding the exported MP4 file.

Step 4. Hit Convert to enable Prism Free Video Converter to convert M4V to MP4 on Windows 10/8/7.

Cons of Converting M4V to MP4 with Prism Free Video Converter

• The option to define specific values for video bitrate, sample rate, and other properties are absent.
• Lack of support for generating 9:16, 1:1, and many regular aspect ratios.
• Slow response when I convert the H.264 M4V file to another codec like MPEG4 MP4.
• Refuse to work with the purchased iTunes M4V files that are encrypted by Apple.

How to Convert M4V to MP4 with FFmpeg

Very probably, you've already got benefit from FFmpeg though you might not have heard about it before. This is because a lot of open sources and commercial programs including VLC media player, HandBrake, and FFworks are using FFmpeg behind the screen.

Step 1. Install FFmpeg on your computer or mac.

On Windows:

• Go to the FFmpeg download site on your browser. Hit the blue Windows, hit Windows builds from gyan.dev to acquire the links for different versions of FFmpeg Windows build. You can click on either one of the available variations to download.
• Extract the contents included in FFmpeg.exe with 7zip.
• Go to your system directory which usually could be found on the C: folder, create a new folder and name it as FFmpeg.
• Paste all the files extracted from the FFmpeg.exe to the newly created FFmpeg folder.
• Go to My Computer, choose Properties, hit Advanced system settings, click on Environmental Variables, and choose New. Here you need to define the variable name as Path, and set the Variable value as C:/FFmpeg/bin.
• Once you finished the steps, hit OK.

On Mac:

• Running the below code line on your Terminal:
• $ /usr/bin/ruby -e '$(curl –fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)'
• Enter $ brew install ffmpeg on the Terminal to install FFmpeg on Mac.

Step 2. If you are converting M4V to MP4 on Windows, press Windows Key and R, enter CMD to launch up the Command Prompt in administrator mode, input ffmpeg-version and tap Enter.

If you are converting M4V to MP4 on Mac, press on Space and input clear to clear the Terminal.

Step 3. Hit the space, input cd, press space, and then paste the path of the source video there. Press Enter again.
Enter ffmpeg -i input.m4v out.mp4, then press Enter. For instance, the name of my source file is test. Then there I should input ffmpeg –i 'test.m4v' out.mp4.

Cons of Converting M4V to MP4 with FFmpeg

• As a command-line tool that doesn't come with GUI, FFmpeg is not for non-engineers.
• It's only capable of converting non protected M4V to MP4.

How to Convert M4V to MP4 for Free Online

In this part, you're going to learn the best 2 online converters that help to convert M4V video to MP4 file without installing the third-party software. That sounds good. However, unlike VideoProc Converter that allows you to convert encrypted M4V to MP4 and 420+ other prevalent video or audio formats, online M4V to MP4 converters always come with many limits. Anyway, we have picked the most popular and top-rated M4V to MP4 converters. You can use the below links to quick navigate to the guide on how to convert M4V to MP4 with the beloved tools.

M4v To Mp4 Mac

How to Convert M4V to MP4 with Freeconvert

Freeconvert is a web-based functional video processor that can be used to compress or convert video, audio, ebook document, and picture files. Converting your video file from M4V to MP4 with it is a breeze thanks to the simple interface.

Step 1. Open up the official site of Freeconvert, hit Choose File, and select the source M4V files for uploading.

Step 2. Hit the gray gear icon to enter a new panel named Video Options. It's the place to change video properties including video codecs, screen size, aspect ratio, and frame rate. Some nice editing utilities are available for cutting, rotating, flipping, and subtitling your videos.

Free M4v Video Converter For Mac Download

Step 3. Hit Apply to All Files if you are converting M4V to MP4 in batch. Otherwise, you just need to hit Apply Settings. Hit Convert to MP4 on the main page. Now Freecovnert begins to convert M4V to MP4.

Cons of Converting M4V to MP4 with Freeconvert

• Too many pop-up ads.
• Take forever to convert M4V to MP4 when you're in a poor network environment.
• The M4V file with a size larger than 1GB is not accepted.
• Useless to transcode encrypted M4V movies, music videos, or TV series to MP4.

How to Convert M4V to MP4 with Cloudconvert

Cloudconvert, as its name implied, allows you to convert videos that are coming from Google Drive, Dropbox, OneDrives, URL, or computer. It is a fairly simple M4V to MP4 converter while still giving you all the necessary options to customize the output MP4 file.

Step 1. After you enter the official site of Cloudconvert, hit the red rectangle button to add up your M4V video.

Step 2. Expand the Convert to option and select MP4. This will activate the tool feature. Tap the tool icon to enter the Options panel. Here you can set Video Codec as x264/x265/copy, change the constant frame rate value, define the conversion speed, change the length and width of the M4V video, and more. Hit Okay to exit the settings.

Step 3. Tap the Convert button to enable this online M4V to MP4 converter starting to transcode or remux M4V to MP4 video.

Cons of Converting M4V to MP4 with Cloudconvert

• The conversion speed is highly impacted by the current network condition.
• A free account is constrained to make 25 conversions per day.
• Not support to convert DRM protected M4V to MP4.

Which M4V to MP4 Converter Should You Use

The best M4V to MP4 converter should be the one that suits your specific needs best. Thus, usually, you need to take your budgets, skill level, the current and further demand into consideration to find the best M4V to MP4 converter.

In my experience, VideoProc Converter is the best option in most cases because it's easy and fast to use, and can convert DRM-protected M4V to MP4 on Mac and Windows without ruining the picture quality. VLC media player is more recommended for people who used to utilize the program to watch media or made simple conversion jobs. FFmpeg is the friend of programmers and tech-savvy. If you are a beginner, you have a stable and fast internet connection, and you simply need to convert a small M4V file to MP4, then it's worthy to try out online M4V to MP4 converters.

Check the below comparison table to fast know the differences and similarities between these M4V to MP4 converters.

FAQ

Is M4V the same as MP4?

M4V doesn't equal MP4. M4V can be regarded as the derivation of MP4 that shares some similarities with MP4. For instance, they are container formats used for MP3, AAC, AC-3, and other audio codecs. Both are capable of holding the H.264 video codec, etc.

What is the difference between M4V and MP4?

M4V vs MP4 - Proprietor/Developer
M4V: Apple.
MP4: MPEG (Motion Pictures Expert Group).

M4V vs MP4 - Video Formats Supported
M4V: H.264.
MP4: H.265/HEVC, H.264/MPEG-4 AVC, MPEG-4 ASP, and MPEG-2 Part 2, etc.

M4V vs MP4 - Supported Devices or Media Players.
M4V: Apple devices, iTunes, and QuickTime Player.
MP4: Almost all popular devices and media players including iPhone, Samsung phones, computers, and VLC media player, etc.

How to view M4V on Windows 10?

Though M4V videos theoretically only play on Apple devices, there are still chances that you can view them with Windows Media Player. Thus, you should first try out playing M4V with that Windows built-in media player. If it doesn't work, you need to convert the M4V movies to MP4 format on Windows 10 by using an M4V to MP4 converter. Suppose the M4V media comes with copyright protection, then you have to work with DearMob iPhone manager to remove the DRM protection first, and then convert it to MP4 with VideoProc Converter.

How to convert M4V to MP4 on Mac?

To convert M4V to MP4 on Mac, you need a decent video converter. VideoProc Converter and HandBrake are the best 2 showcases of such tools. Here I demonstrate how to convert M4V to MP4 on Mac with VideoProc Converter since it's is easier than HandBrake.

1. After this functional M4V to MP4 converter on Mac, open it up and hit Video > +Video to import the M4V video.
2. Choose H.264 MP4 as the Target Format and hit Run.