Multiple audio sources and multiple ways to record audio. DemoCreator makes it easy to create presentation with narration.

To record computer screen, screen recording software would be a good solution. A camera in front of your computer to record your screen is not practical with the following reasons.
1. The camera can not record the screen precisely.
2. The recording video comes out blinking and blurring.
3. The recording is not easy to edit.
4. The video file is too big for web sharing and transmission.