I get a ‘Failed to write MBR’ error from the disk writer on macOS Monterey
This is a known bug in DCP-o-matic. These steps should work around it:
- Go to ‘System Preferences’
- Go to ‘Security & Privacy’
- Go to the ‘Privacy’ tab
- Scroll down to select ‘Full disk access’
- Click the lock and enter your password
- Click the
+
and navigate to /Library/Application Support/com.dcpomatic/dcpomatic2_disk_writer