This article will go over using Handbrake to change your video format to a much smaller file size without losing much quality.
Start by downloading handbrake using the link above and installing it on your computer. Once it has been installed launch it and do the following:
Select the video you would like to modify by clicking ‘Open Source’. Once it is selected, select ‘Presets’
Then select Devices, then Apple 1920p60 Surround
If you use 4k capable AppleTV’s or Brightsign players, use 2160p60 HVEC Surround
Now, select the destination for the export and press Start
Handbrake will then process the video. It will indicate when complete
As you can see in the example below, the file size has significantly decreased.