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Q. Why is the currently playing MOV video has audio, but not video?

In my computer, I have saved some MOV files and want to play them in their default player – QuickTime. But it is showing a blank screen and the audio is playing. Although VLC media player is running the video, why is QuickTime has not video.

I recently discovered that my MOV files that were taken with my older iPhone are no longer playable. QuickTime (QT) just shows the first frame and the duration of the video, i.e., 0:00. I tried playing the file using the VLC player; it is responsive in comparison to the QT. It plays the first frame for the duration of the video. For example, the duration of the video is 0:12, and it shows the first frame of the video for 12 seconds. I suspect that this might have happened after I have updated to Maverick OS. I would appreciate any help.

A MOV file format is a standard multimedia file format developed by Apple and is compatible with both Mac and Windows. Usually, MOV files commonly use the MPEG-4 codec for compression. Many QuickTime (QT) users are dealing with the ‘MOV file not playing’ issues and are looking for a solution to overcome this problem. In addition to this, many users are looking for ways to repair corrupt AVI video files. Here, we will shed some light on some of the most common causes behind this issue and a few of the resolutions to get past this error.

QuickTime Error

Causes Behind the ‘MOV File Not Playing’ Issue

  • Viruses and malicious attacks
  • Major compatibility issues with the codecs (incorrect audio codecs)
  • Bad sectors on the storage device
  • File corruption or damage to the system files
  • MOV files got imported incorrectly
  • An incorrect system update
  • Errors in synchronization
  • Updating media player incorrectly
  • Different media players used for MOV files
  • Your program has a big media cache

If any of the above issues are there, then the QT player may refuse to recognize its proprietary file format .mov, creating panic among the users. Well, there are ample third-party tools and some DIY techniques that one can try before giving up!

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Instant Solution

Try the automated tool – Kernel Video Repair Tool to resolve the issue “MOV files not playing” in few simple steps.

Ways to Fix the ‘Mov Files Not Playing’ Issue

The most efficient ways to fix this issue are listed below:

Method #1 Change the File Extension
On various forums and threads, some users have reported that the mere changing of the .mov or .mp4 extension to .3gp, .avi, or .m4v solved their problem. Changing the file format does make things work sometimes. Hence, we advise the user to try this quick fix before moving forward.

You will need to follow these steps to fix the issue.

  1. First, you need to create a copy of the corrupted MOV file. Then change the .mov extension to .avi.
  2. Launch the VLC media player. Select Tools. Click Preferences.
  3. Preferences

  4. Under the Simple Preferences option, you need to tap on Input/Codecs. Click on the Save button.
  5. Input/Codecs

  6. Under the option damaged or incomplete AVI file, a few options will come up. Choose Always fix.
  7. choose Always fix option

Note: In case, this trick doesn’t work for you, you can try converting the video formats. Converting the video file format can also give the desired results, as doing this allows you to convert the video file to a format your media player will surely support. With this article, you can learn to convert 3GP video file to MP4 without losing quality.

Method #2 Use alternative players
By trying alternate media players, one might be able to play the earlier unplayable MOV files. One can use some popular third-party tools such as VLC, GOM Player, DivX Player, Media Player Classic, etc. Below we will repair our corrupted MOV files via VLC Media Player.

Repair using VLC Media Player

VLC Media player is much more than just a media player as it has many tricks under its hat. This utility is for all Windows and Mac users and allows its users to repair their corrupted video files with much ease. However, it can repair a minor range of corruption and bugs.

Follow these steps to repair the video-

  1. Launch the VLC Media Player and click on Media to open a drop-down menu of options. Tap on Convert/Save.
  2. Click on Media

  3. Select +Add to open the video with VLC. Click on Convert/Save.
  4. Click on Convert/Save

  5. Within the Settings option, opt for the correct codecs. Select AVI as the preferred format.
  6. Click on Browse to choose a location to save the video and tap on Start.
  7. Select preferred file format

  8. From the main menu, select Preferences. Choose the Always fix option and click on Save.
  9. Click on Convert/Save

Method #3 Check with QuickTime

Even QuickTime media player can be put to use to check a corrupt and damaged video file. You can have a detailed check on your MOV videos and then, play it with the same media player.

Follow these steps to check your video using QuickTime player-

  1. Open the MOV video in the QuickTime player.
  2. Select the Window tab and click on Show Movie Inspector. A detailed description of the video will be displayed.
  3. If the video is corrupted, a black screen will be displayed.
  4. If, the MOV file is corrupted, tap on the Edit option within the QuickTime menu.
  5. Select Preferences and then tap on QuickTime Preferences. Use the Update button to update your player.
  6. Restart the QuickTime Media Player.
  7. Lastly, check if your MOV video is repaired or not. In case, the black window still appears, move on to our next solution.

Method #4 Increase Cache Values in the VLC Player

In addition to fixing fully corrupt MOV files, this method also works to fix the video lags or stutters associated with MOV files. The following steps will show you how to increase the Cache values in VLC.

  1. Open the VLC Media Player and tap on the Tools option.
  2. Within the Tools menu, click on Preferences.
  3. click on Preferences

  4. Under the Show Settings option, two options appear – Simple & All. Click on All
  5. Show Settings option

  6. Next, click on the Input/Codec option and choose the Advance option.
  7. Input/Codec option

  8. Within the File caching(ms) option, you need to increase the cache value to 1000.
  9. cache value

  10. Lastly, click on Save and restart your VLC player.

Method #5 Kernel Video Repair
If the above-given methods didn’t work out for you, then it means that your video file is severely corrupt, and it is the right time to look for a reliable third-party tool. An advanced tool such as the Kernel Video Repair Software can be used in this adverse situation. This tool can very quickly repair inaccessible or corrupt video files. The preview feature of this tool lets you preview the repaired files prior to saving them. Its interface is quite attractive and user-friendly as it is highly descriptive. This tool is a complete package as it supports a wide range of formats such as MP4, MOV, MPEG, MJPEG, MTS, M4V, MKV, AVI, AVCHD, WEBM, ASF, WMV, FLV, DIVX, 3G2, TS, 3GP, F4V. In our opinion, one should opt for Corporate or Tech licenses as it comes with added functionality for recovering deleted or lost images of any format. It is worth mentioning that this tool can also repair corrupt WEBM video files, which is a format that YOUTUBE uses for all its videos

Let us now look at the working of this tool in detail. Please follow the steps outlined below:

  1. After starting the software, click the big Plus button to add the videos.Click on Plus button to add the videos
  2. Select the corrupt videos and click Open.Select the videos
  3. When you have selected the video files, click the Repair Files on the Repair button
  4. Select the location where you want to save the repaired file. Click OK.Select the location
  5. The tool has repaired the video files. You can see the status gets changed to Success. You can check the status of the Report in the CSV file also. Later, you can click the Close button.Save repaired the video files
  6. After following all of the above steps, your video file corruption will be fixed. This tool is so powerful that it fixes all sorts of corruption and damages in the video file, covering all popular video file formats. This tool also lets you save the repaired file at a desired location on your system.


We have briefly discussed the ‘MOV file not playing issue’ with QuickTime. A few prominent causes behind this issue have been presented, along with a few quick fixes. If the user is unable to resolve this problem with these aforementioned quick fixes, then one should try the software. Its working is described in the blog post. We highly recommend this tool in case of severe video file corruption.

Kernel Video Repair