This document will show you how to trim, crop, convert video to BlackBerry AVI at length, you can refer to it step by step and take the conversion with ease.
You can download the latest version for free from the product page of Aiseesoft BlackBerry Video Converter.
Add Video files
Install and run Aiseesoft Total Video Converter, click the “Add File” button to add the video files you want to convert from your computer.
Select the file, then choose the output format you need from Profile list, then click "Browse" button to choose destination folder for saving output files.
Click Convert button to start conversion and then you can just go out for a walk or take a nap, and the conversion may have been finished when you come back.