The VideoLAN Forums

Thanks to these guys I was able to get VLC to play most of my BD movies, even without using AnyDVD HD. https://forum.redfox.bz/threads/flawles ... 457/page-6

But high res 5.3 audio is essential for my movie enjoyment. But perfecting VLC decoding of DTS-MA to 5.1 PCM is long overdue. Please make it happen soon. Thank you.

VLC doesn't do codec development, it just packages opensource codecs from elsewhere. You need to ask FFmpeg (and they're most likely going to ignore you unless you give a carrot consisting of a lot of money).