Many people want to convert YouTube Videos to AVI format,
Youtube has never had a download option on their website for people to download videos, however, there are ways to download any video you like. Some people tend to use sites like keepvid.com, which allow you to download videos in FLV format. However, this method can be quite annoying because you need a special player to play them and the FLV format is not compatible with a lot of other programs.
Downloading videos is easily done with a program called Apowersoft YouTube Downloader. Once you download this tiny program, all you have to do is type in the youtube URL of the video you want, and it will start downloading. After the download complete, You can convert videos to any format you Want. Like YouTube to AVI. This is a very popular format and is widely used for videos.
Download this tool
So you have a Downloader + FLV player + FLV converter + Video converter