How To Easily Download YouTube High Definition Videos
A little time back, Veoh and Vimeo were famous for their high quality videos. YouTube was the most popular one, but not well-known for video quality.
All this changed when YouTube introduced their HQ video streams, and a little time back, HD videos. They even have a YouTube HD page, so you can more easily find that high(est) quality material.
Most YouTube download services haven’t progressed that far. They’ve stayed behind with support for downloading low quality FLV’s and decent quality MP4’s. Today we’ll show you an alternative application to download HD YouTube videos to your computer.
YouTube Downloader HD
YouTube Downloader HD is as straightforward as it sounds.You can use it to download those trailers, movies and holiday YouTube video keepsakes to your computer in just a few clicks with the mouse. The application works more or less the same as most YouTube downloading web applications, allowing you to specify the video by providing the relevant YouTube link.
The biggest difference with YouTube Downloader HD is that you can specify in what quality or file format you want to download the YouTube video. Most people don’t know this, but an FLV converter is usually unnecessary, because most videos can be downloaded in AVI and MP4 format as well. As such, all HD videos are stored as AVI’s and will provide no hassle if you want to watch it on your computer.

As an example, we tried downloading the latest Sherlock Holmes trailer, a movie that has called for a lot of critique, but is one that you should certainly grab when it comes out. The YouTube link is here.
After opening YouTube Downloader HD, we paste the link in the first text field. Because I’m a fervent supporter of eye-candy, we choose AVI HD – High Definition as our download option. Note that AVI HD and MP4 downloads will only work if the video has an HQ or HD relative on the side. If the trailer would only have been uploaded in Standard Definition, we’d be forced to download a lower quality FLV or AVI file.
Pick your destination directory and press download. Wait a few minutes or get a soda while the video is retrieved. Thanks to the fast YouTube servers, the download will nearly only be limited by your own internet connection.

Little more than a minute in and the download has finished. Click ‘open‘ to browse through the relevant directory and open your video file. As you can see, the file plays crystal clear, and nicely fills my screen.
Enjoy the YouTube Downloader HD. Do you often download from YouTube or other video sites? Tell us about it in the comments!
The biggest difference with YouTube Downloader HD, is that you can specify in what quality or file format you want to download the video. Most people don’t know this, but an FLV converter is usually unnecessary, because most video’s can be downloaded in AVI and MP4 format as well. As such, all HD videos are stored as AVI’s and will provide no hassle if you want to watch it on your computer.
(By) Simon is a student and tech enthusiast from Belgium. On MakeUseOf, he's the primary gaming writer and eBook editor. Check Simon out @ http://meme.yahoo.com/slangen/



Useful software . This is definitely save my time
youtube-dl is more powerfull
While it may be more powerful, it does not provide neither AVI nor MP4 downloads (from what I can see on the website), and thus needs to be converted before being playable on a different device than a computer. Which needs another piece of software, reduces quality and wastes time.
I think there is another tool “Free Video Downloader”. Free portable app to download HD video from youtube and wrzuta website. It doesn’t require any installation.
YouTube Downloader HD also comes in a portable flavor – just take a look at the download page.