I’ve been authoring a few DVDs, and I can tell you it can be a waste of discs to burn one and then find out you have to make one tiny adjustment, such as moving a button a half-inch to the left. (I can turn into a perfectionist when it comes to these things.) I read there were ways to test them before burning, but most people recommended commercial DVD players which I didn’t need.
I did a bit of testing, by opening the Video_TS.ifo with a few different media players. Neither Windows Media Player (which I despise) or Winamp would open them. Neither would VLC Media Player. However, Media Player Classic did!