I am using a Mac 10.14.6 and I want to record the full screen with both video and audio.

The reason is that I want to record a video from a German TV company, and neither youtube-dl work (there are DRM issues), nor a python script to download all .ts files during watching the livestream. So I figured the only possibility is to record the full screen for the duration of the video, like 3 hours.

To record the full screen I tried the QuickTime Player which was able to record the video, but no audio. Also, after recording only 5 minutes of the screen the size of the final 5-minute clip was about 2 GB (yes, 2 GB). That is WAAAAAAAY beyond anything reasonable.

So is there ANY other way, free tool, python tool, selenium-python possibility etc etc to record and/or download a 3 hour livestream from a webpage into a reasonable sized file (1-2 GB Max) with audio?

  • By "DRM issues", you mean that the copyright owners of this stream don't want you to record the video?
    – benwiggy
    Feb 27, 2022 at 10:48
  • Consider Handbrake to compress the output file.
    – Solar Mike
    Feb 27, 2022 at 11:46

1 Answer 1


Recording the screen with sound using QuickTime Player can be done by the following methods.

  • If you have audio input and output hardware (builtin or otherwise), then you can physically connect the output to input. I have done this using a 2011 iMac. The jacks are shown in the image below.

    2011 iMac

  • There is software that can redirect the sound heard from the speakers so this sound can be recorded by QuickTime while QuickTime is recording video from the screen. SoundFlower and BlackHole both are free software which can do this. BlackHole is probably the better choice. If you choose to install SoundFlower you should read this question.

Saving from QuickTime as a .mov file does take a lot of space. You can convert to a different format to save space. There are various mov to mp4 converters are available on the web or from the App Store. For example, I used the Free MP3 Converter by AnMP4 Studio to convert a 10.82 GB mov file made with QuickTime to a 1.26 GB mp4 file.

  • Thanks for the suggestion, but I cannot record 3 hours and compress afterwards. That would be 72 GB, but I have only 40GB left
    – Alex
    Feb 28, 2022 at 5:36
  • You could acquire a external drive with enough space to make the screen recording. Feb 28, 2022 at 13:12

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