It is very easy and fast to convert AVI to MP3 on Mac (including Mac OS X 10.6 Snow Leopard) for playback on MP3 players using AVI to MP3 Converter for Mac.
Add AVI Files
Download the latest version of AVI to MP3 Converter for Mac, install and run it.
Click the "Add Files" button to import the AVI files stored on your Macintosh HD. Then you can get the video information in the manager panel.
Select Output Format
After the AVI files are imported, go to the "Output" panel. Click the "Profile" drop-down list to choose the format that best fits your needs. Here, you just choose "MP3 - MPEG Layer -3 Audio (*.mp3)" as the output format.
Note: You may not be satisfied with the profile provided to you. In this case, you can click the "Customize..." button next to "Profile" box to customize a profile. In the following "Profile Settings" Window, you can adjust Audio Sample Rate, Channels, Encoder, Bitrate, etc to meet your specific needs.
When all settings are done, click the "Convert Now" button to start convert AVI to MP3.