You got huge sites and which can help you to download youtube videos. But, Youtubecatcher.com has some difference. Youtube.com never support to download youtube video. But through the use of youtubecatcher you can download. Simply you have to paste the video url and click on download button and when you’re going to save just use .flv in last. If you don’t have .flv video file player, you can download this software. As well as you can convert these flv videos to other formats like as avi, mpeg, mp4 and you can trasfer these videos to cellphones or iPods.