Home > Video > Convert MP4 > VOB to MP4 on Mac

How to Free Convert VOB to MP4 on Mac with No Watermark

Hi. After ripping a DVD to a Mac on MacTheRipper, how would I then convert the VOB. files into MP4. files on MacBook for free to make them compatible with iTunes so I can sync them onto my iPod. Thanks, Danny. - MacRumors

VOB is the container format in DVD-Video media, containing digital video, audio, subtitles, DVD menus and navigation contents as well. Generally, files in VOB format are specially stored in VIDEO_TS folder at the root of a DVD and can be played on DVD player, VLC media player, and more, provided they are unencrypted. But if you want to widen the usage of VOB videos, like playing VOB files on iPhone Android on the go, editing VOB in iMovie, or share VOB, etc, demand for converting VOB to MP4 on Mac will be on the rise.

The choice to free change VOB to MP4 as output format is based on MP4's wide compatibility with almost all media players as well as its sound compromise between video quality and file size, which means you can therefore enjoy your VOB files on more gadgets with high quality but small space occupation on your mobile device. Follow the post below to encode VOB to MP4 with MacX Video Converter Pro.

all-round Mac free video converter

Free Convert VOB to MP4 - 100% Free & No.1 Fast

MacX Video Converter Pro is 100% free to transcode VOB to MP4 H.264 and other 200+ digital formats with up to 16x faster than before. It can repair damaged/corrupted VOB files, rotate, crop, trim, add external subtitles, adjust parameters and process VOB files for playback on iPhone, iPad, iTunes without any error.

Part 1: 5 Problems with VOB to MP4 Conversion on Mac

To make video format change to MP4 on macOS seems simple enough, only if you have the reliable free VOB to MP4 converter for Mac. In fact, a search on many popular video forums indicates that in most cases, the vob file to mp4 conversion on Mac is anything but smooth. There are users complaining about various problems with sound, subtitles, codecs etc during video conversion process with HandBrake or others. Maybe you have experienced one of the following problems.

* VOB to MP4 sound problems
This is among the FAQ of Handbrake. "When i try to free convert a vob to mp4 with Handbrake on mac, the sound of some files are horrible (distorted) after the conversion, but the vob plays with no problem." Most users who ran into sound problem will have an audio distortion or bad sound quality, while some even worse, get no sound after the conversion.

* Vob conversion error with sub
Besides the sound errors, another common problem with Mac freeware involves the video subtitles. For example, "I've converted the VOB files to MP4's, but the subtitles are gone! All I really need is a program that will keep the subs ON, after conversion from a VOB.", or "the subs are improperly synced with the audio in the exported MP4, while the vob file ripped from DVD was OK."

* Vob to mp4 conversion on mac finishes parts only
Sometimes the free tool won't convert the full VOB files without giving any reason. After an hour or so, the ended file gives about 1/3 the size and it only gets the first part finished in MP4 format.

* Corrupted vob file
Many users may have some corrupted vob files but can't get a solution to process them. "I need the last part of a vob file but there is a corruption approx half through the video. The error prevents me to free transcode VOB files to mp4 on mac." To be specific, this is not a converting problem. But this will screen out some basic free video processing tools that lack some advanced features.

* Incorrect aspect ratio
The output MP4 videos are different to the original vob files in the display screens. As a user complain that "the new mp4 file was about 50% of the original width and therefore the videos is distorted." For those who want the picture to fill the entire screen of the TV or computer, the distorted or out-of-shape image look really disappointing.

While free vob to mp4 converting on Mac can be loaded with problems, sad users can take solace in the fact that there are reliable & free vob to mp4 converters for Mac that will result sound output mp4 file.

Part 2: How to Convert VOB to MP4 for Playing on Mac iPhone iPad

It's not a hard nut to compress and decode VOB to MP4 on Mac OS for free with a professional yet solid video converter supporting VOB files. So the priority is to dig out a trustworthy freeware.

To be frank, there are many options in the market. But the truth is such freeware usually comes with annoying watermark. Thankfully, here comes MacX Video Converter Pro, a cutting-edge video converter without watermark. It can free convert VOB to MP4, MOV, M4V, etc on Mac (Big Sur) without watermark while retaining high quality as well. Also it helps you compress VOB to MP4 with smaller file size so as to better compatible with your mobile device. As for the broken/damaged VOB files, it can cut off the corrupted clips from VOB file like commercial ads, auto fix VOB video audio out of sync problem, improve VOB picture sharpness via High Quality Engine tech and optimize VOB codecs to fix VOB crash issue, etc.

Step 1: Load VOB Files.
Free download this VOB to MP4 converter freeware on Mac and run it; click "Add File" button on the top left corner to import the VOB file you'd like to convert to MP4. Or you can drag and drop the VOB videos from Mac to it directly. Batch conversion is supported, so that you can load and freely decode multiple VOB videos a time.

free Convert VOB to MP4 on Mac

Step 2: Choose MP4 Encoding Settings.
At the bottom of the window, choose MP4 as the output video format. Besides vob to mp4, you can convert any other videos to different formats freely.

Tips: The stunning Edit features below the video info leaves it up to you to compress and reduce vob file size. As the vob video ripped from a dvd can be very large in size, you can compress vob videos after mp4 conversion: trim the video to get the desired video clips or crop video to remove the unwanted parts to get your preferred segment, etc. And the built-in parameter settings lets you adjust your VOB/MP4 video codec, bit rate, frame rate, etc. to compress video to a large degree.

how to convert VOB to MP4 on Mac free

Step 3: Select Output Folder.
Click Folder button to choose the path where you want to save the exported mp4 files in.

Step 4: Start Converting VOB to MP4 on Mac.
With the above steps been finished, click the "RUN" button to start encoding video from VOB to MP4 on Mac computer with no watermark.

Part 3: Free VOB to MP4 Converters Comparison: MacX vs Handbrake

It is understood that when the question "how to free convert video .vob to mp4 on mac" comes up, most users will think of Handbrake. Why is Handbrake not selected in this guide? Besides the well-known fact that Handbrake is very limited in output formats, for example, you can convert VOB, MKV, AVI, MOV to MP4 or MKV only, this conclusion is actually based on a series of tests against the performances of both video transcoder freeware. In comparison, MacX Video Converter Pro shows times faster than Handbrake, while the output quality is almost the same (it's very very hard to notice the differences and the quality depends on personal feeling). Check the test results below (Also note that the test results involves heavily the computer configuration, a higher confi will see better results):

Source video: a 720P VOB file of 5min 2s, 76.3MB, we converted the vob file to MP4 h.264


  • Conversion time: 3min 31s
  • encoding method: 2-pass encoding, Turbo first pass
  • Speed: around 35fps

MacX Video Converter Pro:

  • Conversion time: 49s
  • encoding method: GPU hardware acceleration, multi-core CPU utility, hyper-threading tech
  • Speed: around 180fps

Part 4: VOB vs MP4: Basic Info on VOB to MP4 Converting

If you've started to free convert vob files to mp4 on Mac, maybe you don't need this part. Below is a brief comparison on the differences between vob and mp4. And with this part, we would like to show you why you need to convert vob into mp4 on macOS.

VOB: VOB is container format in DVD-Video media that contains audio, video, subtitles, dvd menus, and other contents. VOB can be played by a DVD player, and a few video players like Windows Media Player and VLC Media Player. However, vob is not supported by all mobile devices, editors like Windows Movie Maker, Final Cut Pro, iMovie, etc., video sharing sites. Good part is that VOB keeps very low compression.

MP4: MP4 is a digital multimedia container format most commonly used to store video, audio and subtitles. MP4 is the widest-supported format which is compatible with almost all the mobiles, players, websites, editors etc. Besides, mp4 is a format that well balances the quality and file size. If you change a VOB to MP4 for small screens, you can hardly notice any quality differences.

Still have any problem on how to convert VOB to MP4 on Mac, just email us >>