private void cbDVDControlSubtitles_SelectedIndexChanged(object sender, EventArgs e)
{
if (cbDVDControlSubtitles.SelectedIndex > 0)
{
MediaPlayer1.DVD_Select_SubpictureStream(cbDVDControlSubtitles.SelectedIndex - 1);
}
// 0 - x - subtitles
// -1 - disable subtitles
}