Which non-linear editing software application are you using now? Final Cut Pro or Final Cut Express? Both are developed by Apple Inc. for Mac users. Compared to Final Cut Express (sold alone for about $200), Final Cut Pro (buy Final Cut Studio for $1300) supports more video formats, including camera-native editing of leading SD and HD formats. It offers more effects too.
Try to open an .avi file in Final Cut Pro and it said “Codec could not be opened” or “There was an unknown file type”? Is there a way to make the .avi acceptable by Final Cut Pro? How to edit .avi in Final Cut Pro? AVI to Final Cut Pro is engaged in converting AVI to MP4, MOV, DV, M4V, H.264, 3GP which are supported files by FCP. Following below tutorial, you’ll get desired video format easily.
Guide: How to convert AVI to Final Cut Pro MP4, MOV, M4V, DV, H.264, 3GP video?
Step 1: Add AVI files
Install iMedia Converter for Mac and then launch it. Now you can add one or multiple .avi files to the program.

Step 2: Export settings
Define the wanted video format, MP4, MOV, M4V, DV or 3GP. And assign the output folder for the converted files.

Step 3: Convert AVI to MP4
Click “Convert” icon under the video preview window, iMedia Converter for Mac will start the conversion of AVI to MP4.

After conversion, now you can import the new video to Final Cut Pro and edit it in FCP. Download and use the trial version, you’ll find more features!
Avi to ..