|This is Media Player|
|This is Photo Gallery|
But the big button in the middle works differently. If I'm watching a video in Media Player, the biggest button on the toolbar pauses the video. In Photo Gallery, it switches to slide-show mode, an operation that takes several seconds and I never want to do. If I'm not thinking about what application I'm in, I'll hit that big button to pause the video and see my computer grind to a halt whilst it does something I don't want it to do. Why have very similar UIs if the buttons do different things??? Consistent UIs are only any use if they behave consistently.