Close Tray is a small application that, once installed, adds a button to close your CD/DVD tray just below the button that opens it (when you right-click on the disc unit). It undoubtedly does what it says on the tin, but that's all it does, really: it just adds a button that can exclusively close the disc tray. It doesn't do miracles, meaning it doesn't work on laptops with trays that need to be closed manually. Close Tray is a rather limited application, because even if it does what it's supposed to do perfectly well, that's actually not anything particularly useful.
