How to Fix MOV Videos Showing Black Screen with Audio in OneDrive
Question details
Users experience a black screen while hearing audio when trying to play certain MOV video files directly in the OneDrive web player.

- Product
- OneDrive for Business
- Device & OS
- not provided
- Scenario
- Playing uploaded MOV video files directly in the browser using the OneDrive web player.
- Observed behavior
- The video file plays the audio track correctly, but the video display remains completely black due to unsupported video codecs in the browser.
Ensure that your web browser is updated to the latest version, as older browsers may lack built-in support for modern video codecs.
Convert the MOV File to MP4 Format
Converting the video to a universally supported format like MP4 resolves browser and OneDrive playback compatibility issues.
While OneDrive can store almost any file type, its web player depends on the browser's ability to decode the video. Many MOV files use codecs (like HEVC/H.265 or Apple ProRes) that standard web browsers cannot display, resulting in audio playing without the video track.
Download a reliable video conversion software or use a secure online video converter tool.
Upload or import the problematic MOV file into the conversion tool.
Select 'MP4' (specifically with the H.264 video codec and AAC audio codec) as the output format, as it is fully supported by OneDrive and all modern web browsers.
Click the 'Convert' button and save the newly generated MP4 file to your local device.
Upload the converted MP4 file back to your OneDrive and click on it to play it seamlessly in the web player.

Download the Video and Play Locally
If you do not want to convert the file, you can download it and play it using a dedicated desktop media player that supports broader codecs.
Try WPS Office for Seamless Document and Cloud Management
While WPS Office doesn't directly solve OneDrive video codec issues, it serves as an exceptional alternative to Microsoft Office. Enjoy a lightweight, highly compatible, and free office suite that integrates effortlessly with your cloud storage, ensuring smooth document management and seamless file migration.
- 1. Download and Install: Visit the official WPS website to download and install the free WPS Office suite on your device.
- 2. Connect Cloud Storage: Launch the application, sign in, and easily link your preferred cloud storage accounts to access your files.
- 3. Manage Documents: Open, edit, and save your documents seamlessly within the unified and intuitive workspace.

Frequently Asked Questions
Why does my MOV video only play audio in OneDrive?
This happens when the OneDrive web player or your browser does not support the specific video codec used inside the MOV file container. The browser can decode the audio stream but fails to render the video stream, resulting in a black screen.
Which video formats are fully supported for playback on OneDrive?
MP4 files encoded with H.264 video and AAC audio are the most reliable and widely supported formats for playback across all modern web browsers and the OneDrive web player.
Does converting my MOV file to MP4 reduce the video quality?
It depends on your conversion settings. If you use a sufficiently high bitrate and retain the original resolution during the conversion process, any quality loss will be virtually unnoticeable while solving the playback issue.




