Aspect
One of the tricks to getting great looking videos is proper calculation of bitrates, aspect ratio and the size of your video frames. Depending on the format you plan to save your movie projects, you get better results with the help of a calculator app like Aspect, rather than guessing at the settings. Some codecs don't support certain aspect ratios and bitrates well. If you crop the edges of a movie, the aspect ratio is completely thrown off, creating a non-standard size in many instances. Using a calculator app makes sure you make the changes you need without rendering your video unwatchable when you convert it. [Windows 9x/2k/XP $0.00]