Reflecting to the content of the original, first post:
Well... Subtitle appearing when you watch a movie HAS NOTHING TO DO with CloneDVD2 backup method, i.e. selecting subtitles. You can have a bunch of selected subtitles, but if you have selected subtitles off in the menu of your DVD player, NO SUBTITLe will appear, even if you have a dozen of them on the DVD.
It has to do with the setting of your DVD player. Please, check the Menu of your player, you will find an option: prefered subtitles > choose language (list of languages) > turn off.
If you choose subtitles off in your DVD player Menu, when playing a DVD, NO SUBTITLE will appear.