If you're creating video tutorials with screen capture, there's a good chance you're using Camtasia Studio.
In this tutorial I will show you how to mass export your videos into mp4, in high definition. You can choose a lower resolution if your internet connection is not super fast. Once the mp4 files are ready, you can upload them to vimeo.com, youtube.com or your server.
Choose batch processing
Click on Add files/Projects
Select all the projects you'd like to export.
Choose HD for the best quality. If your computer or internet are slow, choose blog or web
Select the folder to export to. I recommend you create a new folder for each course. Then click Finish.