Converting .webinar recordings to .mp4 format.
Converting GoToWebinar Recorded Sessions directly to MPEG-4 Videos (.webinar to .mp4 conversion) is certainly possible, even though your options are limited to using the original software.
Use the GoToWebinar software, which allows users to exports its WEBINAR recordings in MP4 format.
We are not aware of any third-party software or (online) conversion tool capable of converting WEBINAR to MP4.
A video conferencing software from Citrix