My question is about Easy Video Downloader how ...

you can use Moyea Youtube FLV Downloader to download the YouTube Video, this is a totally freeware, you can download here: http://www.flash-to-video.com/products/youtube-flv-downloader.html

You may this Mac video converter, my friends recommend it to me, it works pretty well all the time,
The product may be downloaded from:
http://www.eztoosoft.com/mac-ipod-video-converter.html
Hope it helps. Contact me if you have any other question or you can use http://www.aks.com for more answers .

for me the best video downloader is ant toolbar.

    *  Easily download videos from a variety of streaming sites such as YouTube, Google video and save them to your hard drive.
    *  Integrated Flash video player with your browser so that you can instantly play the videos you have downloaded even when you’re not connected to internet.
    *  Is totally free and contains no adware or spyware at all.

and did i say its free.