This tool requires jAlbum 17 or later and an FFMPEG build no older than 2013, ideally FFMPEG should be updated to at least the version currently bundled with brand new jAlbum installs.
The tool will create mp4 movies from images, with or without a sound track, and using images from the project or from a completed album's 'slides' folders. The videos created will be marked as 'Do not re-encode', so the quality will not be reduced; any audio files added for soundtracks will be marked as 'Excluded', to stop them appearing in your album.
Caveat: when using the tool images used must be of one type only, that is jpg or png or gif etc. If you have mixed image types within a folder only images matching the first type found within a folder will be included in the video.