I like to use a local news site for getting my news and they often have videos. Unfortunately something has changed recently (not sure if it was me upgrading Opera or the news site changing something, but now I can't watch any of their videos.
I see the preview graphic of the video, but if I go to play it (usually just mousing over the video would normally start it playing) the preview graphic changes to say:
This video is either not available or not supported in this browser
Error code MEDIA_ERR_SRC_NOT_SUPPORTED
The video could not be loaded, either because the server or network failed or because the format is not supported.
Here's an example link: http://www.stuff.co.nz/life-style/food-wine/74758758/battle-of-aucklands-cat-cafes
At first I thought the site was using an unsupported codec, as I remember there were competing codecs for HTML 5 video and certain browsers supported certain codecs and no one could agree on what the standard should be, but these videos play ok in Chrome and since Chrome and Opera now use the same engine I thought they should support the same video codecs (or am I wrong on that point?)
I'm using Opera 33.0.1990.115