"For my Media Studies project, I have to download a few Youtube HD videos and edit them on iMovie HD to cut out some scenes that are inappropriate. Is there a program that works for Mac OS X lets me download YouTube HD videos and import them to iMovie?"
Well, with Enolsoft YouTube Converter HD for Mac and this step-by-step tutorial, it's super easy to free download YouTube HD videos on Mac and then convert to iMovie compatible formats for editing in iMovie HD on Mac.
About YouTube HD
YouTube is a video-sharing website on which users can upload, share, and view videos. In November 2008 YouTube added 720p HD, so the YouTube player was changed from a 4:3 aspect ratio to a widescreen 16:9. With this new feature, YouTube began a switchover to H.264/MPEG-4 AVC as its default video compression format. In November 2009, 1080p HD support was added. In July 2010, YouTube announced that it had launched a range of videos in 4k format, which allows a resolution of up to 4096x3072 pixels.
About iMovie HD
IMovie HD continues to be the fastest and easiest way to turn a home video into your own Hollywood-style hit that you can share with family and friends via iDVD, email, your iPad 2, iPhone 4 or other compatible mobile device. And iMovie HD is the easiest way to create a video podcast, which you can share with the world via the Internet with iWeb and .Mac.
With Enolsoft YouTube Converter HD for Mac - a handy Mac HD YouTube Downloader and Converter - you can download YouTube HD videos and import to iMovie with just a few clicks. You don't need to know about video formats or settings - just run the program, paste YouTube HD video URLs, and hit Convert. Here are the easy steps.
Step-by-step guides for Import YouTube HD videos to iMovie on Mac
Step 1. Download & Run Enolsoft YouTube Converter HD for Mac
Download Enolsoft YouTube Converter HD for Mac and follow its installation wizard to install it to your Mac.
Step 2. Add YouTube HD video URLs
Run Enolsoft YouTube Converter HD for Mac and go to the "Download" part, click "YouTube Add URL" button to add YouTube HD video URLs. Copy the YouTube URLs and paste them to Enolsoft YouTube Converter HD for Mac. If you need to add multiple YouTube HD video URLs, make sure that you only paste one link per line to ensure a correct downloading link.

Step 3. Start downloading YouTube HD videos on Mac
The YouTube HD videos will be downloaded automatically when you click the "OK" button. When you have finished downloading YouTube HD videos, go to "Convert" part, and we are ready to convert the downloaded YouTube HD videos to iMovie formats on Mac. You can also convert the local FLV videos to iMovie formats by click the "Add Files" icon to add local FLV videos on Mac.

Step 4. Convert YouTube HD videos to iMovie formats on Mac
Click the gear-like icon at the end of each content to reach the output setting window. Click the "Convert to" column to select an optimized iMovie format such as MPEG-4 Video (*.mp4) from the pre-set format drop-down list. The last step is to click "Convert" icon to start converting YouTube HD FLV videos to iMovie on Mac.

Try all the features of Enolsoft Mac YouTube Converter HD
- Free download YouTube HD videos (720p, 1080p) on Mac.
- Download and convert YouTube HD FLV videos and local FLV files to both HD and SD video formats on Mac, e.g. AVI, WMV, MOV, M4V, MP4, MKV etc.
- Extract soundtracks from YouTube HD videos on Mac.
- Download and convert YouTube HD videos for enjoy offline with many portable devices.

