That is to say, you can edit three versions of a project using non-linear editing in the amount of time it takes to edit only one version of a project using linear editing. All non-linear editing systems consist of a computer, video board, video editing software, audio editing software, external hard drive space, RAM, and video decks. The key is to select a computer with enough processing power, RAM, and external hard drive space. There are many video boards on the market. In order to select the correct one, you need to know what formats you will be primarily digitizing.
Video signals are either composite or component.
The basic difference between composite and component is that composite is a combination of red, green, and blue signals while component is the isolation of red, green, and blue signals. AVID and Media100 are able to utilize both composite and component. Pro is the component version. Both The Targa 2000 and 2000 Pro are Super VHS compatible. Super VHS is its own format because it is a combination of composite and component.