Windows media player always sort of sucked. I remember when I discovered mplayer. What a breath of fresh air by comparison. ostensibly worse, with it's barely there user interface. But... all it did was play video, it would play anything, no more faffing about with installing codecs or different programs for different formats. No annoying ui that tried too hard to look like a piece of hi-fi gear.

I am not sure exactly what happened to it, it's maintainer moved on to other projects I imagine, it's current equivalent is probably mpv