Now that I have finally succumbed to the the temptation of a blackberry (I got the 8830 World Edition), I figured I needed to put it to good use. One good use is watching video on it . Unfortunately, figuring out how to convert it to a format the 8830 would like was a pain in the but. I turned to my favorite video swiss army knife FFMPEG and finally figured out the settings to use.
To simplify the process of converting, I created two batch files called bb_4x3.bat and bb_16x9.bat and added shortcuts to them in my "Send To" folder. Now I just Right Click and Send to on pretty much any video file, and out drops one in the same directory converted nicely for the 8830.
Here is the 4x3 aspect ratio batch file (all one line):