How to convert Youtube videos.flv to iMovie on Mac? iMovie, a video editing software application on Mac, can help Mac users to edit their own home movies and videos. Its powerful features attract more and more Mac users' attentions.If you are a Mac user and wish edit Youtube videos.flv with iMovie, there is an advice for you-----Convert the Youtube videos.flv to video formats supported by iMovie before you use it,because iMovie doesn't support Youtube videos.flv natively. With the FLV to iMovie Converter for Mac you can achieve the object for its following powerful features.The FLV Converter can convert the Youtube videos.flv into video formats supported by iMovie with a few clicks before you edit them . And it can do batch conversion so that you can import as many as you wish at a time. Meanwhile, the FLV to iMovie Mac Converter can rip audio from Youtube videos.flv into audio formats,such as mp3,acc,ac3,wma,m4a,aiff,etc. With a friendly-user interface, the FLV Converter for Mac is a professional but easy-to-use application for both novice and proalike Mac users. Therefore, the Mac FLV to iMovie Converter s the great solution to solve the format problem that iMovie can't open the Youtube videos. flv. With the FLV to iMovie mac Converter, iMovie lovers can feel free to editing the Youtube video files.flv on iMovie. Step by Step Illustration on How to Convert Youtube Videos.flv to iMovie on Mac Step1. Launch the FLV Converter The program is very simple and friendly to use like the following picture: Step2. Input the Youtube videos.flv Click the "Add file" button on the top.Browse the pop-up window and select he Youtube videos.flv you want to convert. Select one video file in the window and click the "Properities" button, there will be a pop-up menu showing its information like size, format and length of time,etc. Step3. Set the output format Select the video format supported by iMovie as the output format in the drop-down menu next to the "Profile" field. Click the "Settings" button, and there are four different zoom modes for you to choose: original,full screen, 16:9 and 4:3, from which to choose one to get right dimension ad aspect ratio as you wish. Step4. Set the output path After clicking the "Browse" button, select a file folder to store the converted videos.If you don't set the output path manually, the converter will automatically set the default output path for you. Step5.Start conversion The software will start the conversion right now by clicking the "Convert" button. The conversion time depends on the number of videos being converted and the speed of your Mac. Step6.Import the output videos into iMovie When the conversion is complete,open the iMoive and import the output videos from the FILE menu.