How to Convert MPG Files to MP4 Format or the Opposite

How to Convert MPG Files to MP4 Format or the Opposite

Selena Thomas

May 12, 2021 11:10Posted by to Convert Video, MP4

"I got some MPG video files from one of my friends, but when I play it on my computer, I got an error message said it is not supported, how to convert MPG to MP4 ?" Although MPG is a video format still using in some cases, most media players cannot open it now. The only way to watch your videos is to convert them to another format, such as MP4. Therefore, you need a powerful video converter program that supports MPG. That is also what you can learn from this guide.

MPG to MP4

Part 1: MPG vs. MP4

Both MPG and MP4 are video file formats developed by Moving Picture Experts Group, but they are completely different on various aspect. To help you understand the differences clearly, we share a table below.

Compression technology MPEG-1 or MPEG-2 MPEG-4
Advantages Provide quality video with small file size Compatible with most media players and digital devices
Store multiple video and audio codecs
Shortcomings Be supported by limited software and hardware Video quality is not very well
Media Players QuickTime Player, iTunes, etc. Most media players

Part 2: Best Way to Convert between MPG and MP4

As you can see, the biggest downside of MPG is the compatibility issue. However, if you prefer to small file size with the same quality, MPG is better than MP4. Anyway, you need a video converter that works for both. Blu-ray Master Video Converter Ultimate can meet your need.

Main Features of the Best MPG to MP4 Converter

To help you understand how the converter works, we convert MPG to MP4 below. Converting MP4 to MPG is almost the same.

How to Convert MPG to MP4 without Quality Loss

Step 1

Add MPG files

Firstly, download and install the best video converter on your machine. It is available to both Windows 10/8/7 and Mac OS X. Then launch it from your desktop, click Add Files menu and select Add Files or Add Folder to import the video files that you wish to convert. The converter is able to process multiple videos in batch. It supports to add videos by drag-and-drop too.

Add file

Step 2

Set output format

After video loading, you will see all titles and thumbnails in the library. If not sure, click the thumbnail to preview it with the built-in media player. Also, you can do some editing by hit the Edit or Cut icon under each title.

To set the output format, click the Convert All to menu at the upper right corner. Then the format dialog will pop up. Go to the Video tab, select the right output format, like MP4, from the left column and pick a preset. You can change the parameters by hitting the Gear button. If you plan to watch the videos on your mobile device, go to the Device tab and select the target device. When it is done, click the blank area in the main interface to close the dialog.

Profile Format

Step 3

Convert MPG to MP4

Click the Folder button at the bottom to set a specific folder for saving the output videos. Finally, click on the Convert All button to begin converting MPG to MP4.

Convert All

Note: To convert MP4 to MPG, you just need to add MP4 to the converter and set MPG as the output format.

Part 3: How to Convert MPG to MP4 Online

Sometimes, you just need to convert between MPG and MP4 occasionally. In such cases, a web app, such as Blu-ray Master Free Online Video Converter should be a great choice since it is more convenient. You can do the job without installing any software. Moreover, it is totally free to use with no payment although you cannot get video editing or other bonus tools. Here are the steps to convert your MPG to MP4.

Step 1

Open a web browser and visit Click the Launch Free Converter button to download the launcher.

Download Launcher

Step 2

Wait for the launcher to pop up after downloading. Then click the Add File button to upload several MPG or MP4 files that you intend to convert.

Convert MP4

Step 3

Move to the bottom area and select the output format. To convert MPG to MP4, choose MP4. Reversely, select MPG. Hit the Convert button to start converting. Then you can download the result to your computer.

Part 4: More Free MPG to MP4 Converters

Top 1: VLC


VLC is far more than a simple media player. It offers a lot of useful features. It allows you to add some MPG files and convert them to MP4 format. As an open-source project, VLC is free to use.



Top 2: Handbrake


Handbrake is another free MPG to MP4 converter. It provides a lot of presets, so beginners can set it up easily now. It is able to convert your videos for playing on mobile devices, like iPhone.



Top 3: Zamzar MPG to MP4 Converter


If you prefer to web apps, Zamzar is a good choice. It is a collection of online file converting apps including an MPG to MP4 converter. You can upload several MPG files and process online.



Part 5: FAQs about Converting MPG to MP4

How do I play MPG files on Windows Media Player?

Unfortunately, WMP does not support MPG. In another word, you have to convert MPG to MP4 or WMV and then play the videos on Windows Media Player or look for another media player compatible with MPG. Read on Top 6 MPG MPEG Players for Windows/Mac/iOS/Android to find more media players to play your MPG files.

Which one is better, MPG or MP4?

The answer depends on your situation and preference. MP4 is compatible with almost all media players and digital devices. If you play the videos on mobile phone, for example, MP4 should be your choice. However, MPG provides smaller file size and can save a lot of space.

Does VLC support MPG?

By default, VLC is compatible with MPG as input format. So, you can play MPG videos in VLC directly. To convert videos to MPG in VLC, you have to configure the Encapsulation manually.


This guide has told you the best ways to convert between MPG and MP4. It is complicated and terrible if you do not have the right tool when converting video formats. MPG and MP4 are totally different video formats, but Blu-ray Master Video Converter Ultimate can help you convert them without losing quality. Plus, it is easy to use and not requiring technical skill. More questions? Please write them down below.

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