Step 1
Launch DVDFab Blu-ray After Editor and load the source
Download and launch DVDFab from the official website. In the Utilities section of the home page, you will see Blu-ray/UHD After Editor. Click it and load the Blu-ray file via the "+" button or drag the source into the interface.
Step 2
Add or replace audio/subtitle track
After loading the source, all the titles of the Blu-ray will be listed on the main interface. Click the "Edit" icon behind the title you want to edit. Select "Audio" or "Subtitles" tab, where you can add or replace audio/subtitle tracks externally. In the "Settings" section, you can set the language and delay time of the newly added audio/subtitle.
Step 3
Start the reauthoring process
Click the "Start" button to initiate the Blu-ray DIY process. You can cancel the process at any time.