Currently ETI in the form of "official music video" or "official video" has only the "video" part lowercased.

For a while now I've been adding quite a lot of music videos but ever since I started adding more fan-made videos noticed that differentiating them from the official version, if any, is getting harder.

Many official videos already include such ETI anyway and it would also help to distinguish them from live videos.

In the event "official music video" is considered invalid ETI guess case should rather remove it.