Thankfully, a team of dedicated Mass Effect fans have created a mod series called 'A Lot of Videos' (ALOV), which enhanced all of Mass Effect's cutscenes to support 1080p and 4K resolutions. Now we are in the era of 4K, making Mass Effect's 720 cutscenes all the uglier.
They were rendered at a resolution of 720p, and don't scale well to higher resolutions, making some of the series' most climactic moments fall flat. When I first played the Mass Effect series, it was primarily on a 1440p display, and even then the shortcomings of the series' cutscenes were apparent.