what's a modded board? do you mean a modded dashboard? you can't do that, you can have the linux ame save and the linux installer that softmod's your xbox and then installs the dashboard on your memory card.
Yes if you have an action replay and the action replay software you should be able to get the files from there. But here’s a tutorial on how to soft mod and it will tell you exactly what to do don’t wonder off and do the wrong thing follow the instruction or you will get error’s trust me errors suck…lol http://forums.afterdawn.com/thread_view.cfm/311710
Are you talking about dvd2xbox? The app that lets you rip games and DVD movies to your hard drive? You can just get that off xbins and transfer it to E:\apps, then launch it from UnleashX. If you're talking about an actual DVD burning application, there isn't one. The Xbox hardware isn't capable of supporting a DVD burner, so no has bothered programming one.