How to play DVD Chapters 4 and 5 without stop and repeat

[glnz]

On my wife's favorite exercise DVD, there are two sections that (I think) appear in my VLC player (Playback - Navigation) as Title 3 Chapters 4 and 5. When she plays the DVD on her PowerDVD, she has to start each Chapter manually (by hitting the button for it in the DVD's menu). She wants to play Chapters 4 and 5 and repeat them (at least once) without stop, so she can exercise continuously without a break. Is there a way to do that using VLC? We each have VLC media player 1.1.4 on a Dell laptop or desktop with WinXPPro SP3.

Maybe make some type of playlist (?) that selects and plays Chapters 4, 5, 4 and 5 from the original DVD without stopping? Please leave step-by-step instructions. Indeed, I just tried to do this, and the VLC seems NOT to go from dvd://3:4 to dvd://3:5 but instead goes back to the DVD menu. Ideally, if I can get this to work, I'll be able to do this in future for any two sections on any DVD, whether or not the sections are next to each other.

In the VLC player, I also tried to use "Loop from point A to point B continuously", but I cannot get it to work for this. Also, what if she wanted Chapters 3, 5, 3 and 5?

[As far as I can tell, both these Chapters 4 and 5 are in a single file on the DVD with the file name VTS_02_3.VOB. But I don't have the patience to play that file (as a file) to see what happens half-way through (between Chapters 4 and 5). Also, that particular file seems to start a few seconds after the normal start of Chapter 4 - it misses the on-screen start title of Chapter 4 but goes straight into the following dancercise movie. Anyway, it's just luck in this case that both Chapters 4 and 5 appear in that one file, and it won't be the same the next time she wants to do this with a different DVD.]

Thanks in advance for your responses!