Oh, that's bad news.
I started adding the .ogv video file in the project.
Then i added the video plugin.
Then i defined the source with the event sheet.
Which work really well in the preview.
But nothing happens when i open the exported nwjs file.
I'll sent you a file with only one video for testing porpuses. Ok?
https://we.tl/7UbhRsO8cb