We developed professional On-line Non-Linear Editing System (on-line NLE) that has high specification based on PC. It has been wanted on-line NLE which can create the final video contents, and it should be reasonable price. However on-line NLE is too expensive since it is based on workstation or specified machine. There are many technical problems to achieve the goal "High quality picture" and "real time effect when using economical PC. We just solved these problems by using advanced technology and open architecture.