vlc DVD audio

When trying to play videos from DVD using vlc I just get a nasty really loud buzzing sound. Playing mp4s gives no problem. The audio device is set as HDA Intel PCH ALC269VB Analog Default Audio Device. Machine is a Shuttle all-in-one PC. Yast gives the sound card as “Haswell-ULT HD Audio Controller” and the driver as snd-hda-intel. Any ideas?

Do you follow the Multimedia Guide?

My system is set up as in the Multimedia Guide.

The problem doesn’t occur with all DVDs. Mainly it’s with self-made DVDs but I sometimes have it with commercial DVDs.