I'd like to be the first to request a PortableApps version of the Open Source DVD authoring tool DVD Flick.
Here's a description of what DVD Flick does taken from its site:
DVD Flick aims to be a simple but at the same time powerful DVD Authoring tool. It can take a number of video files stored on your computer and turn them into a DVD that will play back on your DVD player, Media Center or Home Cinema Set. You can add additional custom audio tracks as well as subtitles of your choice.
I did my homework first and searched the forums. So far no one has mentioned this promising software. Let me know what you guys think.