By default, many videos when downloaded from Youtube or any site gets saved in our PC in .flv format. Then we need a third party application to convert that video to other formats. Here is a website that allows you to directly download any video from Internet in the many formats thus reducing the time of converting the video. Here is a complete list :
Windows (.mpg)
Flash (.flv)
Mac (.mov)
Audio Only (.mp3
)Mobile (.3gp
)iPod/PSP/iPhone (.mp4)
Visit and enjoy : http://www.converttube.com/