Stereo Mode option greyed out --- WHY?

[will7370]

I just put a movie into my computer DVD drive, and in VLC Media Player under the Audio options I have "Audio Track" and "Audio Device", but "Stereo Mode" is greyed out. It offers me no options. I only have audio coming out of my left speaker. I put another movie in and I have full features available under "Stereo Mode". Is this a problem with the way the first movie is encoded? It is a commercially produced Collectors Edition of "Midway". If it truly was produced with only the left channel encoded, shouldn't VLC Media Player at least offer me a way to send that channel to both speakers?

Somebody please help.

Thanks!

[Rémi Denis-Courmont]

Because the source audio track is not stereo.

[will7370]

I pretty much assumed that. But why doesn't VLC Media Player give me the option to send the single audio channel to both speakers???

[Rémi Denis-Courmont]

Because that makes sense (mostly) only for stereo sources, and it has never been implemented for anything else.