Add --audio-multistreams to keep every available audio track (e.g., different languages or commentary).
The most efficient way to handle multiple streams is using the yt-dlp command-line tool . Unlike standard downloaders, it can merge all available "side" data into one file.
Use MediaInfo to check if all three streams were successfully downloaded into your file. If you'd like to get started, tell me: What website or source are you trying to download from?
Are you comfortable using tools, or do you prefer a visual interface ? What operating system (Windows, Mac, Linux) are you using?
Use the --merge-output-format mkv flag to ensure the final file is an MKV.
I can provide the exact command or steps for your specific situation. [Now released] Restore MKV Format Support - Adobe Community
Add --audio-multistreams to keep every available audio track (e.g., different languages or commentary).
The most efficient way to handle multiple streams is using the yt-dlp command-line tool . Unlike standard downloaders, it can merge all available "side" data into one file.
Use MediaInfo to check if all three streams were successfully downloaded into your file. If you'd like to get started, tell me: What website or source are you trying to download from?
Are you comfortable using tools, or do you prefer a visual interface ? What operating system (Windows, Mac, Linux) are you using?
Use the --merge-output-format mkv flag to ensure the final file is an MKV.
I can provide the exact command or steps for your specific situation. [Now released] Restore MKV Format Support - Adobe Community