While "extra quality" is a general term often used on content sites to denote premium or high-definition (HD) resolution, there isn't a widely documented official feature by that specific name for the site you mentioned. Typically, sites like
As AI-driven upscaling becomes more common, even older content is being "remastered" into extra quality, ensuring that the classics look as good as the newest releases. Conclusion wwwsxyprn extra quality
and its competitors use these types of labels to highlight specific technical or user-experience improvements. While "extra quality" is a general term often