Comment by LiamPowell

While VLC is excellent at playing every format under the sun, it's not good at playing all those formats correctly. Off the top of my head:

- Transfer functions are just generally a mess but are close enough that most people don't notice they're wrong. Changing the render engine option will often change how the video looks.

- Some DV profiles cause videos to turn purple or green.

- h.264 left and right crops are both applied as left crops that are summed together which completely breaks many videos. They could just ignore this metadata but from what I've heard their attitude is that a broken implementation is better than no implementation.