mplayer sound "clicks" with dvd rips

[john_doe]

When I'm playing the contents of a VIDEO_TS, ie VOB files (or an encoding done with mencoder) folder with mplayer I get some annoying "clicks" in the sound. The intensenty of these raises with the sound volume. The clicks resembles those made by a geiger counter ;-) I don't really know how to describe them. If I play the files (directly from the copied folder or the files encoded with mencoder) with eg xine there is no problem. But xine doesn't support the vobsub subtitle format so that isn't really an acceptable solution for me.

I have googled and asked on #mplayer on freenode.irc.org without succes. Do you know about this issue?

Thanks in advance!