It's not quite clear what you're asking.
But, with that workflow, wouldn't it make more sense to output each segment as a web-ready MP4?
There's no point in post a VOB to a web site. It will be interlaced, and it won't look very good, even if re-encoded on a site like YouTube?
Here is my take on what I think you might be seeking. You want to know how to obtain the DVD-VIDEO format's structural "Titles".
If that is the case, then you might want to put the DVD-VIDEO disc in the burner drive tray, right click the drive to select Open, double click the VIDEO_TS Folder, and decide what you want if you are looking for the video files (Title Set 1 and so on....VTS_01_1.VOB and so on.)
The extent of what you find will depend on the length of the video.
The maximum number of "chapters/menu markers" per Title is 99. And, the maximum number of "Titles" in a DVD is 99.
Each Video "Title set" can go from VTS_01_1.VOB to VTS_99_9.VOB.
Whereas the scene marker placement directs the viewer to one scene, the VTS_01_01.VOB may end in the middle of a scene (at max 1 GB) and continue in the next of the series VTS_01_02.VOB and so on.
If you have Premiere Elements that you can rip the VOBs for the video via an Add Media/Get Media choice after you put the DVD in the burner tray.
Another approach is using Command Prompt to get a "seamless DVD.VOB"
Is any of the above close to what you were looking for?
I did not see SG's post until after I had posted mine.
Are your web people able to put a webDVD (with menus) on this web site?
Here is a Premiere Elements 10 demo from Adobe TV on webDVD.