How to convert MP4 to AVI video files on Mac?

"I love to put several video clips into my iRiver PMP and I need to convert those MP4 files into AVI format so that they could be compatible with my potable device. Can anyone recommend an MP4 to AVI Converter for Mac for me ?-----Cals.R". With lots of MP4 movies kept in your Mac, you may be interested in converting MP4 to AVI on Mac for your mobile phone or your iRiver PMP. Here iMacsoft Video Converter for Mac will show you how to convert MP4 to AVI on Mac.
1: Add MP4 video
Directly click "Add" button or choose "Add..." option in the top "File" menu, you will see an "Open" dialog window pops up, and select MP4 files from your Mac. When it is done, press "Open" button to load MP4 files.

2: Select AVI format
In the left "General" panel, you will see the "Profile" option, click it and select "AVI - Audio- Video Interleaved (*.avi)" item for output AVI video files. The software allows you to set different output formats according to different files.

3: Adjust some parameters
1)After selecting certain output format, you can choose "General" tab on the right top which will show its general standard. You may set "Video Quality", "Audio Quality", "Output filename" by clicking "General" button.
2)After that, you can also choose "Advance" tab on the right column which will show its advanced standard. You may set "Start Time", "Video Size", "Bit Rate" by clicking certain settings.

4: Set destination and start ripping
Clicking the "Browse..." button and select the output destination for saving in the pop-up window and then select and check MP4 videos in the file list you want to convert and press "Convert" button to start MP4 to AVI files converting process. And you will see the convert process exactly in the progress "Status" bar.

Tips: How to trim video segment?
Select one video in the file list, click "Trim" button in the toolbar to open "Trim" window. You can clip the original video into several parts, then convert and output them separately or as a whole one. Set start point and end point, you get the segment you want to convert and output.

Tips: How to take screenshot when playing MP4 video files?
You are capable to make a stylish album using the snapshots taken from the video with this software. Click "Capture Frame" button at the left top of the main interface to take snapshot when playing the video and save as BMP, click "Open Snapshot Folder" to check the snapshot. You can also define the destination in your hard disk to save the snapshots.