I converted a movie to mp4 for my Ipod and I did the preview before converting and it didn't have subtitles. When I transferred it to mp4 and onto my ipod it has the subtitles. I don't know how to remove the subtitles or just show movie without the subtitles.
This also happened on a DVD I burned that doesn't have a menu to turn the subtitles off. When I play the original DVD it doesn't have the subtitles.