Invoke the VIDEO_TS from the command line using mplayer
 

My camcorder software (on Windows) dumped the video
content in the DVD directory structure:
AUDIO_TS (empty)
VIDEO_TS (contains BUP, IFO and VOB files)

I copied this 2 directories over to my Fedora system.

How do I invoke the VIDEO_TS from the command
line using mplayer?

Place the AUDIO_TS and VIDEO_TS in a directory (for example, /home/someuser/DVD/). You can then play it with:

mplayer dvd://1 -dvd-device /home/someuser/DVD

The dvd-device must start with a slash, so you must specify a fully qualified path.

Ok, cool. Thanks.
I am going to experiment with it.

How do I select the on-screen menu items in
the main menu of the DVD?

With my old set top DVD player, I navigate
with the arrow keys and select with the Enter key.

mplayer plays only the titles of the DVD. It does not have menu navigation. You have to use Xine or Video Lan Client.

Wrong, it is:
mplayer dvd://1 -dvd-device /home/someuser/DVD/VIDEO_TS

Alright, can you tell me how to invoke vlc (or xine) so that it opens
/home/user1/mov1/VIDEO_TS
and
allows menu navigation.

From the desktop menu I clicked on Video Lan Client
but nothing happened and "man vlc" returns
No manual entry for vlc

But "which vlc" returns
/usr/bin/vlc

Please note that as 13/dev/2012 mplayer as mplayer2 does indeed have DVD menu navigation support, you can just invoke it from the command line or via third-party applications like smplayer{2} or umplayer - both mplayer frontends.