I just downloaded the 6.0.19 version. They said that this version is very good. So I'll just stick with it for a while. By the way, I just bought the Lite-on 401s and I used it to burn a couple of movies. But in some movies that I burned, it played fine in the first 20 minmutes, and then I started to have lags. And if I jump from scene to scene, the lags just get even worse. Is it because of the media the I use? Or the speed?(I burned at 2.4x) My old burner DVR-104 has only one speed, and we don't have many lags.