Open the file in the original software, Pinnacle Studio , then use the Export or Render function to save the project as an MP4. Recommended SDV to MP4 Conversion Tools
If VLC doesn't work, these specialized converters support a wide range of legacy and unusual formats: Sdv To Mp4 Converter
Developed by Pinnacle Systems (now Corel), these files store project settings, transitions, and references to media, but they are not playable video files. Open the file in the original software, Pinnacle
Before choosing a converter, determine which type of SDV file you have: These can be converted directly to MP4
Some older mobile devices use .sdv as an extension for 3GP video files. These can be converted directly to MP4.
You cannot "convert" a project file into an MP4 using a standard video converter because it only contains instructions, not video.