You can also use this method for many other free video sites. This will not work for services like Netflix or Hulu.

If you downloaded the 720p version or lower, you’re finished. If you downloaded the 1080p version, read on for instructions on joining the audio and video files.

Download the ffmpeg files from http://ffmpeg. org/download. html. ffmpeg works for all operating systems. Extract the ffmpeg files to a folder labeled ffmpeg on your C: drive. Press ⊞ Win+Pause and click “Advanced system settings”. Click the Environment Variables. . . button. Find the “Path” variable in the “System variables”. Select it and click Edit. . . . Add ;c:\ffmpeg\bin to the end of the “Variable value” line and click OK. This completes the ffmpeg installation in Windows.

Press ⊞ Win+R and type cmd to launch the Command Prompt. Command Prompt will start in your User folder. Type cd X:\path\to\files to open a different directory if necessary. Type ffmpeg -i audioFile. mp3 -i videoFile. mp4 -acodec copy -vcodec copy outputFile. mp4 and press ↵ Enter. Replace the file names with the actual file names of the audio and video files. Name the output file whatever you’d like. This will combine the two files into a new video file in the same folder. The process may take a few minutes.

You can select specific devices from the “Devices” list.

Make sure “mp4” is selected in the “Save as type” menu.

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The upload process may take a long time to complete.