.ifo .vob and .bup are the files that a DVD player reads, you will have to import your MPEG into a DVD authoring application, which will then create the VOBs (Video OBjects), IFOs (InFOrmation files) and BUPs (BackUPs of the ifos) for you, and put them in a folder called VIDEO_TS (and probably an empty AUDIO_TS folder aswell), this is what you will burn to the DVD.
There's hundreds of programs that will do this, from things like Adobe Encore which will allow you to create a professional looking DVD menu system, down to things like MuxMan, which will take your DVD compliant MPEG files and just simply create the vobs, ifos and bups with no extra menu or DVD structure.
Do a bit of research to find out what would be best for you.
edit: Also noticed you posted this question 3 times in different places, this won't help you get the answer any quicker. If you're desperate for a quick answer to a question, I suggest Googling it, 5 minutes research would have brought up what I've just told you.
Last edited by bgarthp; 05-30-2006 at 10:40 AM.
Panasonic SD9, Panasonic NVGS-75, Canon MV600i