You Tube Down loader(YTD) is a very powerful tool for down loading audio, video and multimedia files from the global Internet. It is offered by Youtube.com. It work faster than any other down loader. YTD can be down loaded for free trial free of cost, but after two months, it needs to be updated on payment on line. In order to down load a file from the Internet, the URL of the file must be pasted on the command line of YTD and then start. In a few seconds, the file can be down loaded onto the computer. In addition, it also has facilities to convert a video file into an audio file. It is very user friendly a software. I recommend it to all Internet users and enjoy its services.