"Martin" wrote in message
It's the lack of AD on some programmes that Brian frequently complains
I'm surprised that common PC software for playing MPEG/MP4 files, such as
VLC and Windows Media Player, doesn't have an option to play both programme
sound and AD simultaneously, as a blind person would need to hear both the
dialogue and the description of the action. You can play one track or the
other in VLC, but not both.