No Media can be written to any mounted drive. Please check write permissions
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No Media can be written to any mounted drive. Please check write permissions


Last Updated : October 20, 2023
Products Affected : Media Composer, Media Composer Ultimate

Symptoms:
Why do I get the following dialog when launching?

No Media can be written to any mounted drive. Please check write permissions.

  User-added image

Root Cause:
This dialog can occur if no currently mounted drive allows write access. With the recent versions of macOS, the default permissions do not allow write access to the root level of the system drive. The Editing Application checks to make sure there are drives it can write to when it launches.

This message will commonly occur after performing a major upgrade of the OS or after repairing disk permissions if the only drive you have attached is the system drive. Both of these activities reset the default permissions. 

This prevents the Avid Editing Application from being able to use this drive as a media drive. You will see the drive grayed out in Media Creation settings or as an option for import, mixdown, render, and consolidate/transcode.

Environment:
This issue occurs on macOS.


Solution:

Non-system drives/partitions, and external drives can use the "Avid MediaFiles" folder in the root of the drive. If you have this and get the error, then check the permissions of the "Avid MediaFiles" folder at the root of the drive, so that Media Composer can access that folder.
 

  • Exit Media Composer

  • Open the drive and select the Avid MediaFiles folder.

  • From the File menu select Get Info (or press Command+I)

  • Click the lock icon in the bottom right to make changes

  • Click on the “Read-only” text in the Privilege column next to everyone and set the privilege to “Read & Write"


If you only have the System Drive, then you must use the new default path for Avid MediFiles. With the release of macOS v10.15.x, you cannot write media to the root of the boot drive. Therefore, the default location for the Avid MediaFiles folder has changed with this release.

You can now find the Avid MediaFiles folder in this location:
/Users/Shared/AvidMediaComposer/Avid MediaFiles/

Just make sure Media Composer has correct Read/Write Access to this folder.

For more details see the Media Composer 2020.4 release notes. See page 7:
https://resources.avid.com/SupportFiles/attach/WhatsNew_MediaComposer_v20.4.pdf

Note: If you performed an upgrade and Avid MediaFiles already exists at the root, we will continue to use that location. Also, there is no change for non-system disks. We will continue to use the root for the Avid MediaFiles directory.

 

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