mono audio

This Blu-ray has a mono soundtrack. When I play the disc itself the identical sound comes from both channels. If I make a copy the left channel is okay, but the right channel is silent. Is this a problem with mono soundtracks in general, or just this Blu-ray?

Breaking this request off into it's own request thread from its original bug thread. Would like to see dedicated Mono audio support as a part of CloneBD. I own many movies originally recorded in mono and if possible I'd like to keep them that way rather than transcoding them to Stereo. I'm...