The easy workaround to solve AVI and iMovie incompatibility issues is to transcode AVI to AIC encoded MOV file, which ensure the best results when working with iMovie'11'09/08/.
In Apple's premium video editing software, iMovie, raw .avi files are commonly used. With these video files, both experienced and unexperienced users alike can make all sorts of videos that they can possibly think of. There are some instances, however, that importing an .avi file into iMovie doesn't go successfully. Below are some frequentely asked questions:
Q: I imported an AVI file to iMovie, and it goes through the copying process, but nothing showes up on screen.
Q: AVI played just fine in QuickTime, but they "grey out" in the import window, so I couldn't import to iMovie.
Q: I can import my AVI clips into iMovie, but when I play them, there's an image but no sound.
Q: My AVI plays smoothly in QuickTime, but in iMovie, I get audio but no picture.
In fact, iMovie only reads AVI that both the audio and the video were compressed by using a codec that iMovie can recognize. If your AVI video files are not imported, it's because of the codec used to create the AVI file is not supported by iMovie, even if you have Perian installed, which only allows you to play AVI in QuickTime.
Since Apple InterMediate Codec(AIC) is the the most compatible codec introduced by Apple which ensures maximum editing quality and efficiency when working with iMovie, the easy option to edit AVI in iMovie would be converting the AVI files to AIC encoded MOV.
To fulfill your task, you can just get Brorsoft's Video Converter for Mac, a powerful video converter, editor and player. It offers an optimized preset Apple Intermediate Codec .mov for iMovie for easy access. Besides converting AVI video to iMovie supported videos with optimized settings while keeping the video quality, the all-in-one and easy-to-use toolkit can convert all other popular video formats like MP4, MOV, WMV, MKV, FLV, ASF, M2TS, VOB, etc. to iMovie natively supported video formats on Mac OS X (El Capitan included) with fast encoding speed. See how below about converting AVI files to iMovie format.
Simple Steps to Transcode and Import AVI to Final Cut Pro
Step 1. Load AVI files
Drag & drop AVI files to the program directly. Or go to the "File" menu, choose "Add Video" to locate the AVI files you want to add. You can add several files to do batch conversion.
Step 2. Select the output format
You can choose iMovie/FCE --> Apple InterMediate Codec(AIC) (*.mov) as the output format. The output video can be imported to iMovie 11/iMovie 09/iMovie 08 directly.
Tip: Furthermore, you are provided some useful edit functions cropping, trimming, adding watermark, attaching subtitles for pre-editing your video files so that you can simplify your iMovie editing.
Step 3. Start AVI to iMovie conversion on Mac
Click the "Convert" button to start the AVI to AIC conversion. Just in a few minutes, you make it.
Step 4. Import AVI into iMovie 11
After the conversion, click "Open" to locate the result videos and then launch iMovie,choose File > Import > Movies..., to import the converted AVI video into iMovie; prepare for editing. You will find that it's just a piece of cake to edit AVI files in iMovie.