To make working with video easier, it often helps to compress the final video before you try to upload it anywhere. This is especially important if your video is large and/or if you are working on a slower internet connection. All ISB computers came with Handbrake installed. It is designed specifically to compress video. If you don’t have it on your computer, you can download it at https://handbrake.fr/.
Once you’ve checked that you have the newest version of Handbrake (version 1.3.1), select your video as the source file and choose preset VeryFast720p30. This will ensure a high quality output without taking too much time. I encoded a 5 minute video (700MB to start with) in about 2 minutes (26MB when it was done).
Please note, if you are downloading a video from YouTube or another service, these videos are usually already optimized and will not always benefit from being run through Handbrake.