The bed may be narrow but his arms are open wide.
If you want a video of Leonard Cohen at his super cool peak then this is the only one that is easily available. If your still thinking about the picture quality and "aspect ratio" five minutes in, then I do feel a bit sorry for you, I'm not really sure why you are bothering to watch Leonard Cohen anyway as, to any fan, the songs and the "chanteuse" delivery should really give you all the enjoyment you require, and the quality IS good enough to deliver these.
If it helps to enjoy the concert view any faults in quality as you would his album cover photographs!
30 seconds in I myself was a little concerned about the picture quality 5 minutes in I was transported and simply didn't notice.
Had to give it only 4 stars because the picture quality isn't perfect, poorer than live in London, This is the great man twenty years ago close to the time when he recorded the wonderful Leonard Cohen live, just enjoy it for what it is.
The more recent concert is a magician, who still spellbinds, in his seventh decade, both brilliant, both enjoyable, both life affirming.
Both worth having