Projects from Vegas Movie Studio (.vf) can be exported to several other multimedia formats, including MPEG-4 (.mp4). It should also be possible in the successor products and versions called simply Movie Studio. As far as we know, this seems to be the only reliable way to achieve vf to mp4 conversion.
Convert Vegas Movie Studio project to MPEG-4 video file format.
We found 2 software records in the database related to .vf to .mp4 file format conversion.
Microsoft Windows software - convert vf to mp4 on Windows
A home video editing and DVD authoring software
Convert from vf file format
The tables with software actions are a good pointer for what a certain program does with various file types and often may give users a good hint how to perform certain file conversion, for example the above-mentioned vf to mp4. However, it is not perfect and sometimes can show results which are not really usable because of how certain programs work with files and the possible conversion is thus actually not possible at all.
A set of professional tools for broadcast production by Sony