If you are using Chrome or Firefox, you can record a video using HTML5. However, if you are using Internet Explorer 11 or Safari, you must use Flash to record a video in the Rich Content Editor. The Rich Content Editor is used in features that support the editor (Announcements, Assignments, Discussions, Pages, Quizzes, or Syllabus).
You can record media for any length of time, but shorter video recordings are recommended. If your video is longer than 15 minutes, you may want to consider recording and uploading using an external provider. Longer media lengths require a longer rendering time and may be interrupted without a stable internet connection.
Canvas videos also support caption files. Once you record and save your video, learn how to add captions to a video.
If you are unable to record video comments with your webcam, there are several troubleshooting steps you can try.
Open Rich Content Editor
Open the Rich Content Editor using one of the Canvas features which support the Editor.
Allow Adobe Flash Player Access
To give the Adobe Flash Player access to your computer's camera and microphone, click Allow.
You can open the Settings for the Flash Player to select specific options for your video recording.
To open the settings, Right-click (PC users) or Control-click (MAC users) anywhere on the media window.
The time  and the volume level  of your recording will continuously update as you record. Click anywhere to stop recording.
Your recording will begin to playback automatically. To save your video, click the Save button . To re-record your video message, click the Record button .
Click the Save button.
Note: When using the Rich Content Editor in Discussions, the Save button may appear as “Post Reply”.