Change the Recording File Format Camtasia Recorder > Tools > Options > Capture tab Select one of the following formats: Camtasia Recording File (.camrec): Default recording file format. Proprietary TechSmith file format used to store screen and camera recording plus metadata about various streams into a single package. To add markers, apply SmartFocus, or record a Web camera, you must record with this format. Audio Video Interleave (.avi): Use .avi files to share the recording outside of Camtasia Studio. You cannot add markers, apply Camtasia SmartFocus™, or record a Web camera with the .avi format. See also: Camtasia SmartFocus Recording Tips File Name Options