The output selection drop-down list is located on the right side of the screen, above the preview panes. This allows you to determine the resolution of the video and display of the capture, which in turn determines the size of the capture files uploaded to the server and subsequently viewed or downloaded by students.
The selections available are as follows:
Standard Quality - This is the default setting. This creates a capture with slightly lower quality video and display. The lower quality keeps the CPU usage to a minimum. This is a good choice if you or your students have bandwidth issues that may cause larger file uploads or capture playback to fail..
High Quality - This generates a capture with slightly higher quality video and display. This setting is probably sufficient for playback on most devices.