Hello Jerome,
I have no this option.
What I actually see is:
and option (video with unknown features) doesn't progress:
A week ago, I was able to download 1280x720 videos with built-in audio without any problem.
Also, it was easy to select the feed, as all the features of the feed were shown in VDH.
What has changed from what it was a week ago?
Is it the ARTE channel, which changed their streaming options?
Thanks.
Pavel.
P.S. Another observation: the downloaded video (the one which is without sound) shows other signs of "non-perfection" ... you cannot move the time slider, the total time is not displayed in Windows Explorer.