Converting .mp4 videos .viv format.
Converting MPEG-4 Videos directly to VivoActive Video Files (.mp4 to .viv conversion) might be possible, but it appears that your options are quite limited.
Try using a video editing program or (online) conversion tool, such as SUPER, which might allow users to import MP4 videos and export them in VIV format.
We are not aware of any possible alternative for converting .mp4 to .viv.