One of the things I don’t like about my digital camera (a Canon IXUS 70), is that it generates MJPEG files for videos. That files really take up a lot of space.
And I’m lazy and do not want to use a program like Nero to convert each file one-by-one. So I wrote a small program, that scans a directory (inclusive its subdirectories) for MJPEG files and converts them to MPEG 4 (Xvid).