Editor: ScreenPressor is a lossless video codec designed specifically for screen Capture. It provides unprecedented compression ratio without losing a bit of information (quality is always 100%!). It's probably the best technical solution for video tutorials and presentations.
Lossless
Most popular video codecs are lossy: they throw away information they consider unimportant to achieve desired compression. This is acceptable for movies but looks very bad with screen capture. Lossless codecs are like ZIP files: they keep all original information. Here's a real example: