This will echo a link back to you. This is useful if you have an exact URL you want to download, but you only want the browser to save the file.
This is useful for sites like adcritic, where you can grab the URL to the movie out of the source, and then paste it here. If you just paste it into the URL box in your browser, it will probably not give you the option to save, and instead just embed the movie in the browser. Here, you can echo the link back to you, then you can right-click and choose the option to "Save Target As", where you can then save the file to your drive.
Just enter the URL below, click link, and this page will refresh with the link here: