It can be seen more clearly on the red component. It means that performance of the Pentium III 733 MHz is insufficient. In this case data are recorded right on a disc. In these formats the stream was 5 Mbps for ATI YUV12 and 6 Mbps for ATI UYVY at 25 fps. However, there is a drawback.
Simplification causes loss of smoothness and twice decrease of vertical sharpness.
For comparison I recommend to look at results of the similar tests with ASUS V7100 Delux Combo . No problems arose, but for impossibility of smooth playback right from the TimeLine. After editing there is one or several files. The main inconvenience is that no one popular editor can recognize ATI codecs. That is why it's impossible to save editing results in these codecs for playback by the ATI File Player.