To create tutorials by using snapshots or anything like is not easy without the appropriate tools. Screenflick can help you in this situation.
Screenflick is a program designed to make a video capture of what occurs on a Mac screen. It is possible to get very fluid videos because it can save up to 60 images per second. It can also record audio in parallel with internal or external sources. What sets it apart is that you can compress a saved video as many times as you want at different resolutions, qualities and with or without audio, which allows you to select the presentation options to offer to the film viewers.