Then go for the original copy. The video quality wasn't good to begin with since they just copied the VHS release to DVD and there's grain on the picture from that. Which is a shame since the concert was filmed on 16mm as far as I know and hence could be remastered to proper BluRay format (like Queen's gig from Montreal 1981), but we're again back to having to spend quite some money on it.

And if you have it in mp4, it's even worse since you've compromised the quality by converting it even further.