Catchvideo.net is an online web2.0 service which can download and convert Youtube video to different formats.
There are a lot of web services which can capture and convert Youtube video. I had cover a few of them in my previous post. Catchvideo is a service which similar with them, but comes with more user-friendly interface.
To use Catchvideo, simply provide the URL of Youtube video and choose the format (it support mpeg, mov, mp4, 3gp, mp3, and flv). After that, hit the “Convert and download” button. Normally it take only 1 minute for the conversion. After the conversion, you will get a link to download the video to your local hard drive.