Still can't reproduce it.
What do you mean by "go to the DVD file"? If you have a directory structure like:
- My DVDs |---- DVD1 | |----- VIDEO_TS | |----- VIDEO_TS.BUP | |----- VIDEO_TS.IFO | |----- VIDEO_TS.VOB | |----- VTS_01_0.BUP | |----- VTS_01_0.IFO | |----- VTS_01_0.VOB | |----- VTS_01_1.VOB | |----- VTS_01_2.VOB | |----- VTS_01_3.VOB | |----- VTS_01_4.VOB | |----- dvd.cuts |---- DVD2 | |----- VIDEO_TS | | .....
When you press "Ok" on "My DVDs", you should see "DVD1" and "DVD2" as directories.
When you press "Ok" on DVD1, OpenPLi will detect it is a DVD copy, and will start the DVD. You will never see the individual files that make up a DVD.
I'm guessing you use some third-party media player that doesn't support DVD's at all, if you can see the indivudual files. In which case you have to complain with the author.