VodBurner records to its own internal format: VBC files. (VBC – VodBurner Crude). There are usually four of these for video calls (two for audio-only calls).
To convert these to a playable format, go to the “Previous Calls” tab, click on your call, then click the Edit button. The Post-Production Console will appear. Go to the “Finish” tab and click “Generate Video File”.
If your call does not appear in “Previous Calls”, or you don’t see an Edit button, install the latest version of VodBurner, then try again. (Older versions such as the one currently available in Skype’s Extras manager sometimes did not show all Previous Calls, or did not allow editing on all of them).
For more information on video file formats, read this article.