video doesn't appear in VIDEO_TS

Hi,

I have a DVD and i've entered VIDEO_TS folder, to copy one VOB file, related with 1 of the 2 videos that are in the menu.
The strange thing is that i find 4 VOB files related only with the 1st video (and with different sizes...) and none of the VOB files are related with the 2nd video...

STRANGE....

Where can i find the 2nd video?

Thanks!